The Kelpie of Barara

Seelan has felt lonely all his life. His father is only focused on matters of their kinds' government, and he has never met his mother. So when he meets a kind and beautiful girl on the surface, he finds a way to escape his old life.
A few weeks on the island of Dachaigh with her grandmother who lives there has been good to Lily, but she's ready to leave, at least until she meets the beautiful black horse who lives in the small cove next to her grandmother's cottage.
But after she meets the young man at the harvest festival with a piece of seaweed in his hair, she begins to speculate on what he is.
She had always listened to her Scottish grandmother's tales, and she's starting to wonder if maybe they were true...