#83 Archangel's Enigma by Nalini Singh

As with each book in the series, this one covers one of the supporting cast on his quest to find his mate along with getting the mission done he has been assigned.  Naasir doesn’t fall into the normal category of Hunter, Angel or vampire. He has vampire tendencies but comes across more beastlike in a story universe that doesn’t have were creatures.  He is assigned to escort a scholar Angel to find the hidden resting place of a sleeping Ancient Angel before Lijuan finds him and has him killed.  In the end true love overcomes all obstacles to a HEA ending for this couple.  I know these books stick to a formula but the author has written a very interesting universe and keeps the overall story arc moving along even as people keep falling in love.