To get Max and Rosie’s minds off their mother’s mysterious disappearance, their grandmother, Mozelle, suggests that they visit the old log cabin where their mom spent her summers as a child. This is a place where, when it gets dark, you go to bed. But according to Mozelle, their mother had her happiest dreams during her nights at the lake. That first night, Max and Rosie travel in their dreams to an almost impossibly beautiful place where they meet a wonderful new group of friends. But was it really just a dream? Or is there something extraordinary and magical about this compound by the lake? As Max slowly grasps what is really going on, he wonders if he might have found the key to the mystery of his mother’s disappearance—and how to bring her safely home.