I'm so addicted to this series. Not just the romance scenes, but I've fallen in love with the brotherhood themselves and their fight against the lessers. 
 This book in particular is focused on Rhage and his beast. It's sad how he has to keep the beast at bay in the beginning, and poor Mary when he comes home that one night. I think they're both such strong willed people. Specially in the end when he has to make his choice with the Scribe Virgin. The journey and path that they take together though is worth reading about.