New friends and a mystery help Aven, thirteen, adjust to middle school and life at a dying western theme park in a new state, where her being born armless presents many challenges.

"Third-grader Aven Green has been solving mysteries for a whole month, cracking such cases as The Mystery of the Cranky Mom. But can this perceptive detective solve two cases at the same time? First her teacher's lunch bag disappears. Then Aven's great-grandma's dog goes missing. Fortunately, since Aven was born without arms, all the "arm" cells went to her super-powered brain instead. (That's her theory.) . . . " --

"Third-grader Aven Green is a real professional musician! She just needs to choose an instrument to play. When she decides to try the piano, Aven is disappointed she can't master Mozart in one whole day. To cheer up Aven, her parents take her to see a musician who was born without arms. With new inspiration and a special gift from her great-grandma, Aven is ready for the school talent show. Will she take center stage? Or will she blow her big chance?"--...