Geocaching Mystery
1 The Cacheland Conspiracy (2024)
2 The Quincy Bay Quandary (2024)
3 The Secret of the Seven Valleys (2024)
4 Search for the Serpent's Stone (2025)
5 Deception in Denmark (2025)
6 The Nairobi Nightmare (2026)
2 The Quincy Bay Quandary (2024)
3 The Secret of the Seven Valleys (2024)
4 Search for the Serpent's Stone (2025)
5 Deception in Denmark (2025)
6 The Nairobi Nightmare (2026)
Omnibus editions