Telrim does indeed follow, and despite her claim not to run these missions often, she has had practice moving quietly in this body. She closes the door quietly but lingers close to it, automatically taking up a guard position as Annah goes for the lock below. She expects the night watchman to be on the ground floor, but she's listening for steps either on the stairs or beyond the heavy door.

There isn't time for anyone to near their position, though: in moments she hears the faint click of a failed lock and comes down to check the small maintenance room beyond. And there indeed are the circuit breakers, Telrim's logical guess more accurate than intended. It's not even worth checking them for further tricks.

She gives a soft 'hmh'; if Annah doesn't get to them first, she'll step in to snap the rows of switches upward, plunging them back into dark as the night lights are extinguished. Along with everything else.