15 - Treachery in Outer Space by Carey Rockwell

In the thrilling sixth installment of the Grosset & Dunlap Tom Corbett - Space Cadet series, shipmates Tom, Astro, and Roger find themselves tasked with overseeing an exhilarating interplanetary race to Titan. However, their mission takes a perilous turn as they encounter a sinister threat lurking within the very atmosphere of their destination. Will these courageous space cadets unravel the mystery of the treachery before its too late? Join Rich Brown as he brings this gripping adventure to life.