I've been waiting for Isaac's book since book 1. I liked that this book switched up the dynamic a bit - the two main characters have known each other for years, and mutually pining, but convinced the other doesn't return their feelings. This is also the only book where the familiar doesn't bond with "his own" witch.

I liked how Isaac's trauma and Billy's family situation was explored, and how it was shown that for familiars it's also bad if they stay in human shape too long, because both forms are part of them.

And Peter's fiancée is just the best.