The Fourteenth Goldfish
by Jennifer Holm
Ellie has always wanted to get to know her grandfather, Melvin, better and now she is - she just never expected to know him as a teenager. Melvin, is a brilliant scientist who has discovered a way to reverse aging, the only problem is, he's locked out of his lab. Together, Ellie, Melvin, and their new friend Raj come up with an ingenious way to get in and get Melvin's important work.