I've read Bianca d'Arc's Dragon Warrior series and was interested to see what she'd do with a science fiction story. Her hero is again a warrior, on a distant planet and with psychic gifts. HARRY'S SACRIFICE starts on a snowbound mountain slope, as a specialist team uncovers a metal object said to be the resting place of someone called Hara.

Cormac 7 is an elite warrior and the other men jump to his bidding. These people have left a planet called Alvia and are attempting to make this new world their home. They'll even live alongside humans, treating them more as pets than people. The Alvians have already wreaked havoc on Planet Earth while making it more appropriate for their race's needs. They didn't intend to harm the humans living there; it was an unfortunate side-effect. Winged warriors, genetic manipulation and crystal resonances fill the story, with many main characters and viewpoints introduced in the first chapter. Roshin is a female Alvian acting as a spy among the Earth people. She's a warrior woman herself and she accompanies Cormac 7 into the space pod that is revealed under the excavations. Harry, a half-human, half Alvian man, goes with them.

For a lady who's only known the physical side of mating, Roshin can't believe how crystals emphasise her feelings and the arousal she can feel from the two men. Emotions she's never felt supercharge their actions and before long they're all three mixed up in something powerful. Harry's loyalties are necessarily conflicted and none of them knows where this can lead.

The story is complex and harks to four previous instalments with several characters, as well as diving into the past history and genetic readjustment of the newly arrived race which was struggling for survival. A new reader might do better to get the earlier books and read in order. HARRY'S SACRIFICE by Bianca d'Arc is definitely a book for science- fiction romance fans, with adult scenes including threesomes in a loving relationship.