Choose Your Own Adventure Books (12 books) Some have a little yellowing but overall good condition for their age. Set includes: 1. The Cave of Time 2. Journey Under the Sea 31. Vampire Express 36. The Secret Treasure of Tibet 39. Supercomputer 44. The Mystery of Ura Senke 48. Spy for George Washington 52. Ghost Hunter 70. Invaders of the Planet Earth 71. Space Vampire 73. Beyond the Great Wall 87. Exiled to Earth