Beau Dunn and the Invisible Links

Beau Dunn, a high-achieving fifteen-year-old with a birth defect, was placed on Earth with a very specific purpose...to defeat an evil presence bent on widespread destruction. But, the physical body he was born into, the one that's been hiding and protecting Beau from the evil one, is shrouded in forgetfulness, so Beau remembers neither his true identity nor his mission. Patiently guided by an unseen alien mentor and aided by his perceptive deaf brother and prescient older sisters, Beau's life is supposed to be taking a heroic turn-but it'll never happen unless he can get past the forgetting and his physical limitations...and discover himself in time.