"After the monster apocalypse, Jack Sullivan has been having an awesome time living in a tree house with his three best friends. But when zombies start mysteriously disappearing, Jack and his friends suspect that an extremely evil force is at work"--
Fifth-grader Frederick is sent to a disciplinary camp where he and his terrifying troop mates have just started forging a friendship when they learn a Category 5 hurricane is headed their way.
Fifth-grader Winnie, with notes from her friends, writes of turning her treehouse into an embassy after her newly-divorced parents become unreasonable, where she is joined by nine others with complaints.