Shades moved.
At first, Ludwig thought it was just the aftereffect of the dim light from the fungus-lamps scattered across the fortress walls, flickering in drafty tunnels. But then those shadows did not remain where they should. They deepened, pooling like ink across the cracked floor, sliding down jagged columns, clinging to the corners of the ceiling. The longer he stared, the more they shifted, crawling out from the seams between stone blocks as if the fortress itself were bleeding darkness.
