Charlie Numbers and the Man in the Moon

In this engaging follow-up to Bringing Down the Mouse, Charlie Lewis, a talented mathematician, is recruited to unravel the mystery of stolen moon rocks. As he and his friends go undercover by competing in a paper airplane contest at the Smithsonian, they delve into scientific principles like aerodynamics and gravity while investigating a potentially larger conspiracy. The story combines adventure, science, and intrigue, challenging Charlie to consider how far he's willing to go to solve the case.