- Cat-astrophes: A Purr-fectly Puzzling Mystery: A heartwarming and humorous mystery novel about a cat detective who solves crimes with the help of his feline assistants.
- The Shadow of Dr. Thorne: A Paranormal Mystery: An eerie and mysterious tale that intertwines the present with the past, featuring ghostly encounters, haunted mansions, and a forgotten history that holds the key to solving the mysteries.
- Unmasked: Murder in the Theater: A riveting theater-set mystery where a murder occurs during a production of Shakespeare's Twelfth Night, and a determined group of thespians must uncover the truth behind the tragedy.
- Murder on the Orient Express: A Parody: A humorous take on the classic Agatha Christie novel, bringing a fresh twist to the original with slapstick comedy and unexpected plot developments.
Nonfiction:
- Zellmann's Guide to Creative Writing: A comprehensive and practical guide to various forms of creative writing, offering insights, tips, and exercises to help writers enhance their skills and craft compelling narratives.
- The History of Mysteries: From Ancient Enigmas to Modern Thrillers: An informative exploration of the history and evolution of mystery literature, tracing the genre's origins from ancient myths to its contemporary forms and sub-genres.
- Travels with a Ghost: A unique blend of travelogue and supernatural encounters, where the author shares his eerie experiences and paranormal discoveries while exploring historical sites and enigmatic places around the world.