Paperback editions[]
- The Bell, the Book, and the Spellbinder (2014)
- The Chessmen of Doom (2014)
- The Curse of the Blue Figurine (2014)
- The Drum, the Doll, and the Zombie (2014)
- The Eyes of the Killer Robot (2014)
- The Face in the Frost (2014)
- The Hand of the Necromancer (2014)
- The Mummy, the Will, and the Crypt (2014)
- The Revenge of the Wizard's Ghost (2014)
- The Secret of the Underground Room (2014)
- The Spell of the Sorcerer's Skull (2014)
- The Treasure of Alpheus Winterborn (2014)
- The Trolley to Yesterday (2014)
- The Wrath of the Grinning Ghost (2014)
Electronic editions[]
- The Bell, the Book, and the Spellbinder (2014)
- The Chessmen of Doom (2014)
- The Curse of the Blue Figurine (2014)
- The Drum, the Doll, and the Zombie (2014)
- The Eyes of the Killer Robot (2014)
- The Face in the Frost (2014)
- The Hand of the Necromancer (2014)
- The Mummy, the Will, and the Crypt (2014)
- The Revenge of the Wizard's Ghost (2014)
- The Secret of the Underground Room (2014)
- The Spell of the Sorcerer's Skull (2014)
- The Treasure of Alpheus Winterborn (2014)
- The Trolley to Yesterday (2014)
- The Wrath of the Grinning Ghost (2014)
- The Gargoyle in the Dump (2015)