Miles and the Magic Flute by Heidi Cullinan
When the forest behind a Minnesota pawn shop turns out to be the doorway into a faerie paradise, Miles Larson doesn't see any reason to complain. He's bankrupt, single, and living in a trailer in his backwoods hometown after being laid off from his big city job: he could use a little downtime in a homoerotic dreamland. But Miles soon learns that in the faerie world, nothing is quite as simple as it seems. The beautiful faerie man who has captured Miles's heart might also be after Miles's soul. The frightening beast who chases him through the forest is actually a noble-hearted human under a terrible curse. And at the center of it all is the deathly beautiful Lord of Dreams, a faerie so powerful that if Miles so much as looks at his face, he will be lost in dreamland forever. The only hope for Miles's escape is a magic flute, an enchanted instrument that holds the answer to the faerie lord's defeat. But even if Miles is smart and strong enough to wield it, will he dare? When the cold light of truth dawns, if there is no reality beneath the love he's found in the faerie realm, Miles will have to return to his own world--alone.