The station shuddered before they reached the doorway. Talren's good hand tightened around Nova's forearm, and the old man stopped so abruptly that Nova almost pulled him off balance.
"Wait," Talren whispered.
Beyond the room, the upper exit was no more than a break in the stone wall. Daylight fell across a short passage leading to the ridge above. Its floor had looked solid when Nova entered, but a thin crack now ran across the middle, widening as the suspended landmass overhead continued its slow passage.
Nova steadied him. "How long?"
"Until it settles? I don't know anymore. That's the trouble." Talren swallowed and leaned against the wall. "It used to turn after the shadow crossed the measuring peg. Today it's turning before."
