Late in the afternoon on Sunday, the entire Sacramento enclave convenes for an emergency meeting in their reading room.
No one goes down to the shop that afternoon. Larisa has a project getting dangerously close to due, but the only sleep she's had today was a couple of hours after curfew ended but before breakfast, when she was able to stick Cassie on Vanya-watching duty. She'd been planning to nap again but then THINGS HAPPENED, and she's exhausted even with stimulants, which are additionally making her very jumpy, so it wouldn't have been a good plan even if not for the unknown maleficer running around.
When they go to dinner, they do it as a pack. They've got a roster worked out for classes tomorrow, with the seniors and juniors buddied up with the younger students to pick them up from their rooms in the mornings and walk them to and from their classes.
Larisa's given everyone the lecture on situational awareness, again. Until they know what's going on, here, they're not going to be taking any chances.