List of Books in the Download: 1. The Secret of Terror Castle 2. The Mystery of the Stuttering Parrot 3. The Mystery of the Whispering Mummy 4. The Mystery of the Green Ghost 5. The Mystery of theVanishing Treasure 6. The Secret of Skeleton Island 7. The Mystery of the Fiery Eye 8. The Mystery of the Silver Spider 9. The Mystery of the Screaming Clock 10. The Mystery of the Moaning Cave 11. The Mystery of the Talking Skull 12. The Mystery of the Laughing Shadow 13. The Secret of the Crooked Cat 14. The Mystery of the Coughing Dragon 15. The Mystery of the Flaming Footprints 16. The Mystery of the Nervous Lion 17. The Mystery of the Singing Serpent 18. The Mystery of the Shrinking House 19. The Secret of Phantom Lake 20. The Mystery of Monster Mountain 21. The Secret of the Haunted Mirror 22. The Mystery of the Dead Man's Riddle 23. The Mystery of the Invisible Dog 24. The Mystery of Death Trap Mine 25. The Mystery of the Dancing Devil 26. The Mystery of the Headless Horse 27. The Mystery of the Magic Circle 28. The Mystery of the Deadly Double 29. The Mystery of the Sinister Scarecrow 31. The Mystery of the Scar-Faced Beggar 32. The Mystery of the Blazing Cliffs 33. The Mystery of the Purple Pirate 34. The Mystery of the Wandering Cave Man 40. The Mystery of the Rogues' Reunion