Legacy of the Inventor: A Timmi Tobbson Adventure (Solve-Them-Yourself Mysteries Book for Boys and Girls 8-12) Paperback – Illustrated, September 17, 2020 by J. I. Wagner, Javier Gimenez Ratti, Tracy Phua

Description

A world famous inventor disappears under mysterious circumstances, leaving behind clues to a well hidden secret. In a race against time, Timmi Tobbson and his friends hope to uncover and save the inventors legacy, while an old and powerful enemy resurfaces, stopping at nothing to get there first.