Thump.
That sound was very muffled.
It didn't sound like knocking on a door; it was more like something trapped in a cramped space, desperately striking the barrier that confined it with its head or soft, limp fists.
Each impact carried a viscous, lingering echo.
Lin Jie's hand had already left the wall by now.
He stood there, his spine ramrod straight.
[Serene Heart] was gripped in his hand, but he didn't raise the muzzle, because he didn't know where to aim.
In his reverberation perception, this deep red wall before him was the end of the world.
There was only a blank, unparseable void.