Kidd, Ronald creator USA 1st.ed. 48 p. 2 x 0.14 x 8.96 inches (paperback) With the help of her grandfather's special aging machine, eight-year-old Maggie Murphy and her younger brother Arthur set out to solve the case of the missing tuna as adults, but don't have much time before the machine's powers wear off. Children's Literature Action or Adventure Mystery, Thriller or Terror Time machines Mystery and Detectives 9780439024198 124561