Rescue the nuclear physics mastermind Dr. Wogan in this interactive book where YOU decide what happens next! Packed with 20 possible endings! Choose Your Own Adventure books–the 4th bestselling children’s series of all time–are back and as much fun as you remember. Kids and adults agree, these are the books that get 9- to 12-year-olds reading. The machine that you have been working on could neutralize radiation and potentially stop the threat of nuclear weapons. Mysteriously, the inventor of the machine, along with the plans, goes missing. YOU are her trusted assistant, and the world looks to you for help. Has she been kidnapped? Or, is she in danger and hiding on purpose? Be careful, the choices YOU make might end in glory, disaster, or certain death.