Ten-year-old Tae Kwon Do blue belt and budding rock hound Brendan Buckley keeps a "Confidential" notebook for his top-secret scientific discoveries. And he's found something totally top secret. The grandpa he's never met, who his mom refuses to talk about or see, is an expert mineral collector and lives nearby!

When her family is forced into an internment camp, Mitsi Kashino is separated from her home, her classmates, and her beloved dog Dash; and as her family begins to come apart around her, Mitsi clings to her one connection to the outer world--the letters from the kindly neighbor who is caring for Dash.