Evan and his younger sister, Jesse, react very differently to the news that they will be in the same class for fourth grade and as the end of summer approaches, they battle it out through lemonade stands, each trying to be the first to earn 100 dollars. Includes mathematical calculations and tips for running a successful lemonade stand.

Siblings Evan and Jessie must solve the mystery of a missing cherished family treasure while coming to terms with their beloved grandmother's unsettling behavior.

"A magic show, card tricks, and a disappearing rabbit named Professor Hoffman--the Treski kids are at it again as they try to put on a show in the face of an approaching hurricane. But nothing prepares them for what blows into town next: their long-lost dad"--