Do you think Anevka underestimated Tarvek as well? I'm really wondering how open he was with her, or whether he was obfuscating with her as well as with everyone else - probably less so, but still keeping things back. I'm not sure we really can tell from the text - she obviously has faith in him, and doesn't seem to dismiss him as simply a tool, but I do wonder who was going to be the dominant power in the long term in their original plan. Not true, I'd be almost certain that each of them intended to be, one way or the other.