The wreckage of Leviathan lies quietly in the depths of the trench, like a giant beast with its internal organs eviscerated.
Avengers's deep-sea detectors surround it like electronic jellyfish, scanning every inch of the structure.
"Confirm that the signs of life have disappeared," Banner's voice sounded in Avengers Base, with a hint of exhaustion, "The energy reading has returned to zero. But... these structures..."
The main screen shows the ancient metal exposed inside Leviathan, with complex and unfamiliar geometric patterns etched on it.
"Friday, compare patterns." Tony·Stark ordered. His armor was suspended above the wreckage, and his expression under the visor was solemn.
"Database comparison... no matching records. The pattern structure does not match the artistic or technological style of any known civilization - terrestrial or extraterrestrial.
Material analysis shows that the composition of the alloy is unknown, the molecular structure is extremely stable, and the dating... within the error range, may be more than 10,000 years old."
Natasha frowned. "Ten thousand years ago? When humans were still playing in the mud, this thing was lying on the earth?"
"Perhaps longer," Strange's voice came through the portal. He stepped out and floated next to Tony, while Cloak of Levitation swayed slightly.
"These symbols contain... remnants of magic. Very old, very unfamiliar. It is not a system of earth magic, nor is it different from the energy signature of Dormammu or other known dimensions."
Thor flew over with a hammer and looked at the symbols carefully. "Asgard's records never mentioned this object. It is not the object of Nine Realms."
"An unknown extraterrestrial creation that is older than human history has been hiding under our feet?"
Steve concluded with a heavy tone, "And it just woke up and tried to copy Xiao Han?"
"Then he was slapped to death." Clint added, but there was no smile on his face.
All eyes turned to Xiao Han. He was holding a new drink and seemed to have no interest in this discussion.
"Do you understand those things?" Tony asked him directly.
Xiao Han glanced at the screen. "I don't know him."
"But it finally locked onto you," Natasha asked, "Why? Does it know you?"
"It thinks my energy is very eye-catching," Xiao Han said in a calm tone, as if he was talking about someone else.
"Like a lighthouse. It wanted to become part of the lighthouse, or... overshadow the light of the lighthouse." He took a sip of his drink, "It failed."
At this moment, deep in the Leviathan wreckage, those ancient symbols suddenly flickered, extremely weak and fleeting.
"Energy fluctuations!" Banner exclaimed, "It's very weak! It's like... some kind of residual signal sent the last message!"
"Can it be analyzed?" Fury's voice cut into the communication.
"Attempting... The signal is too weak and the structure is completely unknown... Unable to decipher the content. But tracking the direction of the signal..."
Banner's voice suddenly became shocked, "... the signal has no specific direction. It is... broadcast. Broadcast to the entire universe."
The command center fell into dead silence.
"What did it send out?" Steve asked in a deep voice.
"The most likely thing is..." Tony took a deep breath, "Its failure record. And... it scanned the energy characteristics and data about Xiao Han."
Everyone's eyes focused on Xiao Han again. He put down the cup.
"So," Xiao Han concluded, with no emotion in his voice, "That noisy thing used his own life to send my business card to the universe."
He stood up and looked at the sky outside the window. Super Vision penetrated the clouds and looked into the endless deep sky.
"Okay." He said calmly, "I hope the next person who comes to cause trouble can be a little quieter."
After saying that, he ignored the solemn atmosphere of everyone behind him and disappeared into a golden light.
Tony looked at the direction in which Xiao Han disappeared and murmured to himself, "He talked about an event that might lead to an unknown threat in the entire universe, as if he had received a spam advertisement..."
Strange looked extremely serious. "The point of the problem is not how he views this matter, Stark.
The point is that Ancient Beacon, which has existed for at least 10,000 years and about which we know nothing, used its last power to announce to the entire universe what kind of energy source exists on the earth.
We don't know who will receive it, let alone how they will react to this 'business card'."
Fury's one eye scanned every Avengers: "It seems that we have to prepare for more 'uninvited' guests.
Rogers, speed up the training progress of New Avengers. Stark, Banner, I want you to set up a team to study those ancient symbols, even if you can only decipher one word. Thor..."
Thor nodded solemnly. "I will return to Asgard and consult the oldest classics. Heimdall's eyes will be more alert to gaze at the starry sky."
And in a remote corner of the universe, a strange-looking spacecraft that seemed to be composed of crystals and biological tissue received the weak but unique broadcast signal.
The master brain analyzed the signal content, and its core flashed with a light similar to the Leviathan symbol. Finally, it aimed its course in the direction of Solar System.
The broadcast has been made, and the response will eventually come.