Those are some very faint fingerprints, with contours already very blurred.
At the tips of the fingerprints, there are also a few hair-thin scratches.
They seem to be left behind unintentionally when someone reached out to touch the wall with their nails.
Because the wall uses high-end artistic paint and has been specially treated with a matte finish, it significantly reduces light reflection.
This makes these marks appear exceptionally subtle to the naked eye, almost blending into the wall.
Even in the vision of the "Scavenger's Eye," the corresponding halos are extremely dim.
Of course, part of this is certainly due to the passage of time.
Fang Cheng's eyes slightly narrowed, and then he walked to the wall beside the bed, slowly extending the index finger of his right hand.
Under the puzzled gaze of Lin Chuqiao and the others, he concentrated his spirit and lightly tapped his fingertip on one of the brightest halos on the scratches.
"Trace rewind!"
