We can bet that “Number Six” is a doozy.
(Click on the image for larger size. 
Commencement: Chapter One, Page Twenty-Four written and commissioned by Dr. Faustus of EroticMadScience.com and drawn by Lon Ryden is published under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.)
I’m a little confused; is ‘Cherubino’s identity known to the reader? (And if so, who is she, again?)
It’s not specifically known to the reader, but after the next chapter especially it should be pretty easy to infer (if she hasn’t already). If you want a hint, take a look at who is in the room with Colonel Madder in this sequence.
Cool; thanks!