Krosk is being Pragmatic Cat.

Or Violetta got in touch with him, let him know she's still alive but in deep cover, and not to tell anybody. So he's not.

(It is also possible the cultists need a human sacrifice to summon their creature, and they've got Violetta. That would seem pretty stupid; but then, they appear to be.)

Quote Originally Posted by Grif View Post
More than that, I think it also showcases his ruthlessness, and how he views Agatha's entourage as expendable. Only the Mistress is indispensible, because she's the One.
Agatha is his only real subject. Can't be a king without subjects...