And promptly runs into Plourr's back.

Plourr makes a wordless noise of complaint as she lights a glowrod, and she says, "You." The passage--floored, walled, and ceilinged in economical gray--flashes to life, extending as far as the eye can see, and Plourr swats back at Ajedrez, her face casted in the red light of the glowrod. "Watch it."