OOOH interesting. Gannicus in his hellrena state would definitely kill her (which would also make for an interesting reunion back in the capitol), but without the hellrena effects he would still remember the fact that he owes her a life debt for healing/purging the first time around so wouldn't kill her unless she needed mercy killing. Hmm.

Maybe we could say... he attacks her in his hellrena state, she tries to purge the nastiness, but he kills her before she can do it? Something like that? Unless you have any other ideas you would like to incorporate!