- Where the Footprints End: High Strangeness and the Bigfoot Phenomenon, Volume I: Folklore
- Where the Footprints End: High Strangeness and the Bigfoot Phenomenon, Volume II: Evidence
- Un Banquete Troyano: Extraterrestres, Seres Elementales y Bigfoots
- THIEVES IN THE NIGHT: A Brief History of Supernatural Child Abductions
- The Brimstone Deceit: An In-Depth Examination of Supernatural Scents, Otherworldly Odors, and Monstrous Miasmas









