- Lost in the secret cavePeter Reese Doyle
- Escape from Black ForestPeter Reese Doyle
- Launched from the castlePeter Reese Doyle
- Stalked in the catacombsPeter Reese Doyle
- Trapped in Pharaoh's tombPeter Reese Doyle
- Kidnapped in RomePeter Reese Doyle
- Chased by the jewel thievesPeter Reese Doyle
- Surrounded by the cross firePeter Reese Doyle
- Hunted along the RhinePeter Reese Doyle
- A captive in WilliamsburgPeter Reese Doyle
- Ambushed in AfricaPeter Reese Doyle
- Hot pursuit on the high seasPeter Reese Doyle
