Incubus (The Incubus Saga) (Volume 1)

Nathan only ever wanted a normal life, but for him, life, family, and love are anything but normal. On the other side of the Veil, dark and light fae exist outside the knowledge of most humans. Nathan Grier was born human, but his twin brother Jim is a changeling. On the run since they were children, time for both of them is running out. Turning to fae hunter Sasha Kelly for help, Nathan must soon face his growing feelings for the other man while trying to save himself and his brother from a fate worse than death.