SUNSINGER by Robyn Bachar is book three in the Cy'ren Rising trilogy. It's an erotic sci fi romance, but I feel like it failed at all three genres. I enjoyed the sci fi part of the book the best. For a Samhain-published book, the sex was tamer than I expected, and also fewer sex scenes than I anticipated. There is M/F, M/M, and M/F/M action in this story.

Lord Degalen Fairren is the sole survivor of the Sunsinger massacre. A rival house is trying to take over all the other houses including Galen's, and Galen is forced to make an alliance with House Morningstar. He offers to mate with Lady Andelynn Harrow, one of House Morningstar's daughters who had no expectations of marrying due to her terrible secret. Virginal Galen has his own secret of why he has not mated yet. Galen and Andee end up pulling a third into their relationship- Malcom, a slave who is an IT guru, who accesses computers to help their in their fight against the evil rival house trying to take over using a deadly bioweapon.

The romance between the three felt underdeveloped and rushed. I couldn't buy into the love so quickly professed between any of them. While it wasn't insta-love (which I positively despise), their tumble into seemed far too rapid and without much basis. Their love was also told to me rather than shown by character behavior, so it felt artificial.

Conflict resolution between characters was too easy and felt too pat. I did some have difficulty following portions of the story, presumably because significant world building had gone on in books one and two. SUNSINGER can be read as a standalone, but I think reading the books in order would probably explain some of the questions I had that were not answered.