Haven by D.C. Akers
Sam Dalcome thinks he is so completely average that no one ever notices him. Until he discovers a mysterious stranger outside his home. Bewildered, he tries to uncover the stranger's intentions. But Sam is sidetracked when he and his friend Travis discover a secret passageway deep in the town's quarry that leads to a hidden cavern. What they uncover next will not only change their lives forever, but will uncover the first clue to a deadly Dalcome family secret. Sam finds himself drawn into a world of mystery and magic he never knew existed, which brings him closer to a destiny he never knew was possible.