A tale of a young boy's first summer going off to sleep-away camp. Far from home, separated from his family and not knowing a soul, Mattie Kleinfeld is scared, homesick and cries himself to
sleep. But soon the tears give way to new friends and fantastic adventures. But it is not the canoe trips or the overnights that set this summer apart; it is not even his first girlfriend. It
is a clue that he and his pals stumble upon that leads them to the adventure of a lifetime, to a vast treasure and to a window that sheds light on Mattie's unique background.