"Detectives really did see things differently. I didn't notice anything wrong." While Sherlock Holmes had Da Vinci analyze the battle data from before, Shen Fei recalled the fight and found nothing out of place.
"Da Vinci?" When Sherlock Holmes received no response, he called out again. Da Vinci's holographic image appeared, but her words were reduced to distorted static, completely unintelligible.
"Ever since the battle began, intense interference appeared on our side. We couldn't obtain any data at all." Mash's holographic image appeared next and explained the situation. As for Da Vinci, she had naturally gone to inspect the equipment and determine what had gone wrong.
"Interference? Like in Fae Country?" Ritsuka immediately asked.
"No, I believe the cause is different this time. In Fae Country, concepts born from its rejection of Pan-Human History rejected every electronic device aboard the ship. Although we encountered interference here, the functions themselves have not been lost. In other words, the problem here is completely different from Fae Country." Sherlock Holmes explained the distinction between the two. This was not merely to answer Ritsuka's question, but also to inform Kadoc of the situation.
"So you really are a great detective," Kadoc said.
"Because I am, indeed, a great detective." Sherlock Holmes nodded calmly.
"Then, regarding the battle just now, Master, Kadoc, and Shen Fei, did any of you notice anything suspicious?"
"Command Seals." After thinking for a moment, Ritsuka immediately spoke.
"Correct. Command Seals. Those people were also equipped with Command Seals, the same kind used by Chaldea's Masters, and they used the magical energy within them to unleash Noble Phantasms," Kadoc added.
"So that was it. Those Archers really had been using Command Seals that way. Servants using Command Seals to replenish their magical energy... that's a pretty good idea. I never considered