Siberian/Manton possibly operate while asleep

“Here is what you need to know, Regent, Bitch.  Each of the Nine’s members get to put our recruits up to a test.  Some of us always give the same test, time after time, no matter the candidate.  Mannequin always asks candidates to alter themselves in a way that costs them something.  Siberian waits until half the candidates have been discarded and then hunts the remainder.”

[...]

“Of course,” Jack tapped the heel of his hand against his forehead, “That was an interesting little twist.  Of course, you didn’t tell her how much she needed to drink, or if a certain species counted…  Well.  It broke her stride, didn’t it?  Siberian went after her, starting on day two of Bonesaw’s parasitic infection.  Three days and three nights of cat and mouse.  To her credit, she did very well.  It came down to a hair.  Another ten minutes and Siberian might have caught her a third time.”

A dark look passed over Cherish’s face.

“Shatterbird likes the psychological tests, and she was in a hell of a mood after Cherish nominated herself for the team.  Our Cherie didn’t have five minutes to rest before Shatterbird drove her into a room and sealed her in.  No food, no light, barely any water.  The room was empty, but for one glass shard.  Always edging towards her, ready to prick, cut, slice and stab the second she stopped, the moment she tried to rest.”

I shivered.  Jack hadn’t said how long that lasted, but after three days and three nights without sleep, even a few hours like that would have been nightmarish.

[...]

“What was your test, Jack?” Regent asked.  I couldn’t tell if he was glad to know his sister suffered or sad for her.

“Oh, I knew it would be almost impossible to top Mannequin’s test.  He caught her at the exact right moment, struck the right nerve, and pushed her to her very limits.  Still, I think I managed to top it.  Turn around, Cherish.”

[...]

“I made her do the other six tests all over again.”

- Plague 12.4