Items with "Kristoph, David" as Credited Author
Ultimate Ending
1. Treasures of the Forgotten City2. The House on Hollow Hill
3. The Ship at the Edge of Time
4. Enigma at the Greensboro Zoo
5. The Secret of the Aurora Hotel
6. The Strange Physics of the Heidelberg Laboratory
7. The Tower of Never There
8. Sabotage in the Sundered Sky
9. Rescue from the Valley of Chaos
10. Mystery in the Murky Deep
11. Crisis at Desolation Station