Immutable

Lonely young shepherd Callum spends many sleepless nights in his clifftop cottage longing for a man to share his life and his bed. A companion to work at his side in the daytime, a lover to lie at his side in the darkness. One day, as he gathers firewood on the beach, he finds Breen, a strange, beautiful, and naked man lying in the surf, apparently washed ashore. Has the sea heard the silent prayers of Callum's heart and brought him this man to answer those prayers? Breen makes love to him, leaving Callum in a blissful sleep, from which he wakes alone, fearing Breen was no more than another dream.
But when Breen is there again the next day, Callum knows he's real. With Breen in his cottage and his bed, Callum thinks he's the happiest man that ever drew breath. Until he grows suspicious of such perfection, knowing no mortal man ever has such unalloyed bliss. Until he defies the voices in his mind that tell him not to question his good fortune. Not to ask how the larder is so full all of the time.
Or why the dog won't come into the house. Or where Breen goes at night when Callum is asleep. Searching for the answers will lead Callum to make the worst mistake of his life.