Raven picked up the button before looking around with careful eyes.

“Hmm.”

Soon, he spotted a thin thread of torn fabric just a few meters away. After moving towards the foreign object, he carefully picked it up with his fingers, then slowly walked a straight line created by the two alien objects.

“There’s more.”

He muttered after finding three thin threads on the ground about 20 meters away. There was a trail of thread. He initially found one, but now held several in his hand. A calm collected expression appeared on his face. It was clear that someone had purposefully left behind a trail of threads. Moreover, the threads belonged to the owner of the button he found at the beginning.

“It is a signal.”

Raven was a veteran honed by decades of battles. He carefully examined his surroundings.

“Footprints. Two adults.”

It wasn’t too difficult to find traces and footprints in the grass.

“Was one heavier than the other? No, judging from the fact that it left deeper imprints, one was carrying something. Either heavy luggage, or…”

He muttered while closely examining the footprints, then slowly raised his head.

“Human…”

Raven’s...