The Demon Queen and The Locksmith — Spencer Baum

Kevin panicked when his ears began to buzz. He couldn't be a Hearer. The Hearers were the town freaks. Worse, his dad was one of them, and Kevin's greatest fear was that one day he might turn into his father. In Turquoise, New Mexico, a small but notorious group of hippies believe that the mountain north of town emits a constant, resonant hum that is only audible to a chosen few. They call themselves the Hearers, and fourteen-year-old Kevin Brown has never trusted them. But when a carefree afternoon with his friends comes to a surprise finish at the spot where Kevin spread his mother's ashes only a year before, a place where the open air seems to resonate in Kevin's ears, he realizes he might be a Hearer too, and "The Turquoise Hum" might be much more than a sound.