Chapter Summaries

After Sherlock and Watson tidied their rooms for Mrs. Hudson’s arriving niece, the chapter revealed how Tangna died in a meteor strike, gained the Everyone’s Favorite System, and chose British and American crossover missions. It left Tangna customizing her one permanent mission body while learning that body damage could leave her owing energy or working unpaid missions.

• Mrs. Hudson asked Sherlock and Watson to tidy up before her niece arrived, and Watson helped Sherlock clean the living room.
• Tangna rode a taxi to 221B Baker Street and recalled that a meteorite had killed her during a camping trip.
• A higher-dimensional being rescued Tangna’s brainwaves, and she registered the Everyone’s Favorite System with Candy for British and American crossover missions.
• Tangna learned that mission energy would be divided among herself, Candy, and the main system, then entered the mission space.
• Candy guided Tangna to use her single body-shaping card, and Tangna discovered that repairs or destruction of her permanent body could cost her energy or unpaid missions.

Tangna completed her character creation, chose the BBC version of "Sherlock" for her first mission, and entered the world as Sitangna, Mrs. Hudson’s niece. She arrived at 221B Baker Street, met Watson and Sherlock, and began settling in.

• Tangna adjusted her appearance and body with Candy’s help, then reviewed her mission rules and character attributes.
• Tangna chose the "Sherlock" mission and received the identity of Sitangna, a 24-year-old Chinese-British exchange student with the English name Stunner.
• Sitangna arrived at 221B Baker Street and reunited with Mrs. Hudson, who welcomed her inside.
• Mrs. Hudson introduced Sitangna to Watson, who helped bring her luggage into the flat.
• Sherlock carried Sitangna’s suitcase upstairs, deduced details from her name and appearance, and Watson was left carrying the luggage.
• Sherlock passed Sitangna again and abruptly told her, "I'm not gay."

Sitangna settled into Mrs. Hudson’s home and became involved in Sherlock’s investigation of the bomber’s third game. After she recognized a clue that helped Sherlock identify the next lead, he brought her along to investigate.

• Sitangna met Sherlock and Watson, learned that she was wealthy in her new identity, and settled into the attic at Mrs. Hudson’s home.
• The next day, Sitangna learned that Sherlock and Watson were investigating a serial bomber and saw Lestrade arrive with the police.
• Sitangna recognized the case as the third bomb game from the show and received a task to follow Sherlock, solve the remaining cases, and save the hostages.
• Sitangna mentioned Botox while discussing the female presenter, prompting Sherlock to watch her show and work out a connection.
• Sherlock asked Sitangna to come with him, gave her a voice recorder, and told her to pose as a reporter at their destination.

Sherlock, Watson, and Sitangna uncovered Raoul de Santos’s murder of Connie Prince and helped the police locate the bomber’s hostage. The bomber noticed Sitangna’s involvement and sent Sherlock a message, while the hostage was being protected as the bomb squad worked.

• Sherlock, Watson, and Sitangna interviewed Kenny Prince and found disinfectant on his cat’s claws, but Sherlock explained that it had come from the freshly cleaned floor.
• Sherlock identified Raoul de Santos as Connie’s killer and revealed that Raoul had injected her with a lethal dose of botulinum disguised as Botox.
• Watson reminded Sherlock that an elderly hostage still had a bomb strapped to her, and Sherlock said he had been solving the case to gain time.
• Sitangna stopped Sherlock from submitting his answer after learning that police had located the hostage’s apartment, evacuated the area, and begun defusing the bomb.
• Sherlock asked how Sitangna had found the hostage, but she kept her method secret and promised to explain later.
• Moriarty texted Sherlock, praised Sitangna’s addition to his team, and called her one of his assistants.

After Sitangna helped the police rescue the hostage, she used her quest points to buy a one-use rule-ignoring device. The next morning, Sherlock and Watson argued over public safety while investigating the bomber’s new message, and Sitangna left with Watson to go shopping.

• Inspector Lestrade told Sherlock, Watson, and Sitangna that the elderly hostage had been rescued, and Sitangna explained how she had helped locate her.
• Sitangna opened the system store and spent five quest points on a single-use cheating device that could ignore rules or restrictions within ten kilometers.
• Sherlock and Watson discussed the bomber and the Carl Powers case, then argued when Sherlock said he thought the criminal wanted to pass the time.
• After a new message from the bomber arrived, Sherlock began investigating while Watson joined Sitangna in searching newspapers for clues about the River Thames.
• Sitangna suggested asking Lestrade for information, then said she would go shopping with Watson and went upstairs to get her bag.

Sitangna went shopping with Sherlock and Watson, bought cosmetics, and had her makeup done while Sherlock and Watson searched for news about the failed hostage-taking. At the mall, they ran into Molly and Jim, whom Sitangna recognized as Moriarty, and the chapter ended with the group awkwardly meeting at a restaurant.

• Sitangna, Sherlock, and Watson traveled to a shopping district, where Sitangna chose cosmetics and treated Sherlock and Watson to a meal.
• While Sitangna had her makeup done, Sherlock and Watson searched for information about a suicide and a double stabbing but found nothing useful.
• Sitangna finished her makeup and became a VVIP customer after her purchase.
• Watson spotted Molly and Jim at a restaurant, and Sitangna recognized Jim as Moriarty.
• Sherlock greeted Molly and Jim, then Watson introduced himself and Sitangna as Sherlock’s friends and roommates.

Sitangna enjoyed a meal and shopping trip with Sherlock and Watson, then met Mycroft, who paid her to report on Sherlock. After helping Mrs. Hudson and tending Sherlock’s injuries from a fight with the Stone Giant, Sitangna found herself in an awkwardly intimate moment with him.

• Sitangna shared food with Sherlock and Watson at a Thai restaurant while Molly realized Jim had asked her out to get close to Sherlock and left without speaking to him.
• Sherlock received an urgent call from Lestrade about a new body at Thames River Bridge, while Mycroft visited Sitangna and offered her money to report on Sherlock’s activities.
• Sitangna accepted Mycroft’s check, then spent the afternoon cleaning with Mrs. Hudson and accompanying her on a walk.
• Sherlock and Watson returned with injuries and told Sitangna about fighting the Stone Giant, whom Sherlock had eventually driven off with Watson’s gun.
• Sitangna disinfected Sherlock’s wounds, and Watson teased her about leaving a huge gap between herself and Sherlock.

Sitangna learned that her energy had to be replenished within three days or she would lose life points, forcing her to reconsider her reluctance to pursue Sherlock. At the gallery, she helped Sherlock solve a forgery case and save a child hostage by reminding him of the planetarium.

• Sitangna treated Sherlock's wounds, and he invited her to the art gallery the next day.
• Guoguo told Sitangna that depleted energy would trigger escalating life-point deductions and eventual erasure, while Sitangna explained her discomfort with pursuing feelings for Sherlock.
• Sitangna shared Mycroft's check with Sherlock and Watson, and they agreed to call their group the Baker Street trio.
• At the gallery, Sherlock confronted the director about a painting he believed was forged while a bomber threatened a child hostage with a countdown.
• Sitangna shouted, "The planetarium, Sherlock!" and Sherlock connected the Van Buren Supernova to the painting's impossible date, saving the hostage and exposing the forgery.
• Watson asked Sitangna how she had guessed the clue, while Sherlock walked ahead eager to hear her explanation.

Sitangna accompanied Sherlock to the police station after the forgery and theft case, where the director began revealing how she had communicated with her accomplice. Sherlock grew alert as he sensed her confession might expose the key to the case.

• Sitangna and Sherlock discussed how astronomy might connect the painting’s clue to the victims.
• Watson received a text, left on his own, and Sitangna went with Sherlock and the others to the police station.
• Officers took the suspected director in for questioning while Sitangna waited outside and got Sherlock a cup of ice water.
• The director said she and her accomplice had never contacted each other directly and had only passed messages.
• Sherlock focused on the director’s next revelation as Sitangna set down his water and stood beside him.

Sherlock and Watson solved West’s murder and recovered the memory stick, but Sherlock secretly used it to lure Moriarty into a meeting. Sitangna followed Sherlock to the pool, where she found Watson wearing a bomb vest and Moriarty waiting with armed men.

• Sherlock learned that Moriarty had passed on the bomber’s message and joined Watson and Sitangna at the railway junction, where they deduced that West’s body had been moved.
• Sherlock led Watson and Sitangna to Joe Harrison’s flat, where Watson confronted Harrison and Harrison confessed to accidentally killing West and taking the memory stick.
• Sherlock claimed he had given the memory stick to Mycroft, but after Watson left for his date, he used it to arrange a meeting with Moriarty.
• Sitangna followed Sherlock to the swimming pool despite Mycroft’s instructions to wait, while Watson arrived there wearing a bomb vest.
• Moriarty revealed himself at the pool and told Sherlock that he had expected Sherlock to call.

Sitangna intervened when Moriarty threatened Sherlock and Watson, helping them survive the bomb plot before Sherlock carried her to safety. Moriarty escaped, but Mycroft received a lead on his whereabouts as the injured group headed to the hospital.

• Moriarty confronted Sherlock at the pool, revealed his fixation on him, and threatened him and Watson with snipers.
• Sitangna used a strength pill to kick Moriarty into the pool, then helped Sherlock free Watson from the bomb vest while Mycroft's forces moved in.
• Moriarty triggered the bomb's countdown, but the blast left Sitangna, Sherlock, and Watson shaken rather than seriously injured.
• Sherlock carried Sitangna outside, while Mycroft learned the police had caught only two snipers and Moriarty had escaped.
• In the ambulance, Watson praised Sitangna for saving them, and Mycroft set off after a woman who had a lead on Moriarty.

Sherlock struggled to explain that he had not meant to push Sitangna and Watson away after they risked themselves to protect him. Mycroft then brought him a case involving Emily Cavendish, whose report of a faint fishy smell gave Sherlock his first clue about an apparent intruder.

• Sherlock reproached Sitangna and Watson for intervening in his confrontation with Moriarty, then admitted the next morning that he had not meant they had nothing to do with him.
• Watson worked on a blog post about their recent investigation while Sitangna treated Sherlock's burns and bruises.
• Mycroft summoned Sherlock, Watson, and Sitangna to Buckingham Palace and gave them confidential files about Emily Cavendish.
• Emily told Sherlock that a kidnapper had threatened to bomb her unless she handed over evidence in a money-laundering case.
• Sherlock asked Emily about anything unusual in her residence, and she recalled noticing a faint fishy smell near her dressing table.

Sherlock, Watson, and Sitangna investigated signs that Emily’s home had been entered, then discovered the kidnapper had hidden a hallucinogen in her perfume. As they rushed to protect Emily at the opera house, Mycroft negotiated with Irene Adler, who agreed to hand over intelligence if she could meet Sherlock.

• Sitangna noticed that one of Emily’s scented candles had been melted and altered, so they sent both candles for testing and stayed overnight to protect Emily.
• Sitangna woke to the fishy smell in Emily’s bedroom, and Sherlock identified a trace hallucinogen hidden in Emily’s favorite perfume.
• Sherlock, Sitangna, and Watson prepared to hurry to the opera house, while Sherlock called Mycroft to ask about security there.
• Mycroft told Irene Adler to hand over her intelligence, and Irene agreed on the condition that she could meet Sherlock.

Sherlock, Watson, and Sitangna traced Emily’s disappearance from the theater box through a hidden passage into an abandoned subway tunnel. They emerged beside a derelict church and spotted a possible lookout, leaving them poised to search the kidnappers’ hideout.

• Mr. Cavendish received a ransom demand for fifty million pounds and collapsed while asking Mycroft to help find Emily.
• Sherlock questioned Emily’s security team, and Sitangna deduced that a holographic projection had disguised Emily’s disappearance from the theater box.
• Sherlock used the sofa’s temperature and the timing of Emily’s restroom visit to conclude she had been taken from the restroom, where police found a concealed passage.
• Sherlock, Watson, and Sitangna entered the passage and followed it through an abandoned subway tunnel to the riverside district.
• Sitangna spotted a reflection in a broken church window and asked Candy for help, but Candy demanded five task points.

Sherlock, Watson, and Sitangna confronted Victor Trevor at a church but found no sign of Emily, while electromagnetic interference disabled their devices. After solving the topology puzzles, Sherlock realized the codes marked coordinates in London, giving the search team a way to locate Emily.

• Mycroft told the group that Victor had demanded ransom in three installments, each accompanied by a topology puzzle, and Sherlock recognized the kidnapper as his former university friend Victor Trevor.
• Sherlock, Watson, and Sitangna entered the church and confronted Victor, who warned that Emily was not there and that she would die if they failed to find her in time.
• The group left the church, and the Cavendish family’s butler told them that the first puzzle had been solved and fifteen million pounds had been transferred.
• Emily woke wearing a vest wired with bombs and recalled being drugged and kidnapped from the theater, where Victor’s accomplices had used signal interference, a holographic decoy, and an abandoned subway tunnel to hide her abduction.
• Sherlock solved the three puzzles and realized their codes corresponded to latitude and longitude coordinates of buildings in London, then marked the locations on a map for the investigators.

Sherlock and the rescue team found Emily beside a bomb in the church clock tower, where Victor revealed his family’s destruction and accused her father of framing them. As the countdown neared its final ten minutes, Sherlock offered Victor help, but Victor seized Emily and threatened to destroy the evidence and everyone in the church.

• Sherlock combined the Underground map, the Thames tributaries, and church spires to locate Emily at the clock tower.
• Victor told Emily how her father’s schemes had ruined the Trevor family, leading to the deaths of more than thirty relatives, and accused her of protecting him.
• Sherlock and the team entered the clock tower and found Victor, Emily, and a pressure-sensing bomb powered by the church pendulum.
• Sitangna used mission points to acquire Golden Bell Shields and told the rescue team to wait outside while she and the others stayed in the church.
• Sherlock explained how he had identified Victor through clues including beeswax, pollen, and a chemical found in Emily’s perfume, then offered to help clear the Trevor family’s name.
• Victor grabbed Emily and pressed his gun to her head, insisting that the evidence be revealed or destroyed as the bomb’s countdown entered its final ten minutes.

Sitangna played Bach’s “Air on the G String” on Victor’s pipe organ, using its sound to disarm the bomb and let Emily capture Victor. After returning to Baker Street, Sherlock suspected Mycroft had drawn him into a larger matter, while a projection of Moriarty appeared in the church’s stained glass.

• Emily refused to sacrifice her family, while Sitangna and Sherlock realized Victor’s pipe organ might reveal how to disarm the bomb.
• Sitangna used a temporary skill card to play Bach’s “Air on the G String,” and the organ’s sound disabled the bomb’s pressure sensor.
• Emily knocked away Victor’s pistol and subdued him, deciding to verify his claims about her father and family for herself.
• Victor warned Sherlock that London’s corrupt system would keep turning, while the investigation team praised Sherlock and Sitangna for the rescue.
• Sherlock spotted Moriarty’s silhouette in the church’s stained glass, then took Sitangna and Watson back to Baker Street instead of the police station.
• Sherlock carried the sleeping Sitangna to bed, ate takeaway noodles with Watson, and wondered why Mycroft had involved him in the case.

Sitangna and Sherlock suspected Victor’s apparent suicide did not resolve the kidnapping case, while Emily secretly arranged to hide Victor’s accomplice and protect herself and Ian’s team from her father. The chapter ended with Mycroft arriving at 221B after Sherlock tried to shut him out.

• Sitangna pretended to sleep while Sherlock carried her upstairs, then went down to retrieve her warmed meal after he left.
• Oliver Cavendish visited Emily in the hospital, promised to reclaim her USB drive, and ordered his team to interrogate Victor’s surviving accomplice after learning Victor had supposedly killed himself.
• Emily told Ian to replace Victor with a similar-looking death-row prisoner, and Ian arranged for Anjieka to carry out the switch in secret.
• Oliver ordered the case classified as an ordinary kidnapping for ransom and instructed the team to close it without further investigation.
• Sherlock told Sitangna and Watson about Victor’s reported suicide, and Sitangna said the circumstances felt suspicious.
• Sherlock tried to shut the door on Mycroft, but Mycroft wedged it open and entered 221B.

Sitangna was teased by Watson and Mrs. Hudson about her feelings for Sherlock, while Mycroft gave Sherlock a job and called out his emotional turmoil. The next morning, Sitangna attended a group gathering at her senior’s estate, where she played “Song of the Chile” for her fellow researchers.

• Watson and Mrs. Hudson told Sitangna that her attention to Sherlock made her feelings obvious, leaving her flustered.
• Watson left to see Jessie, but Sherlock’s repeated calls later disrupted their date and brought Watson back home.
• Mycroft offered Sherlock a job, and Sherlock accepted before Mycroft left him with the remark that his heart was in turmoil.
• Sherlock teased Sitangna about her winter clothes and perfume before they discussed when to visit the address in Mycroft’s file.
• Sitangna arrived early at her senior’s estate for a group meeting and joined her fellow members around the fireplace.
• The group urged Sitangna to play piano, and she performed “Song of the Chile,” earning praise for the emotion in her playing.

Sherlock and Watson recovered Irene Adler’s encrypted phone, but Irene tricked Sherlock into triggering its data wipe before Mycroft could use it. Back in the present, Sitangna left William’s car to join Sherlock and John, and William offered her his scarf against the cold.

• Irene challenged Sherlock to guess the phone’s password and used his concern for Sitangna to unsettle him.
• Sherlock unlocked the phone with the password 1786, but Mycroft discovered it had erased its data and restored its factory settings.
• Months later, Sherlock kept the phone as a reminder not to underestimate opponents.
• After lunch, William offered Sitangna a ride home, and she accepted while Lilian left for her date.
• Sitangna spotted Sherlock and John, got out of William’s car to join them, and William tried to wrap his scarf around her when she shivered.