* "The Mysterious Message" (2015)
* "The Treasure Trap" (2015)
* "The Secret of the Sundial" (2016)
* "The Puzzle of the Pyramid" (2016)
* "The Mystery of the Mask" (2017)
* "The Riddle of the Ring" (2017)
* "The Danger Down Under" (2018)
* "The Curse of the Cave" (2018)
* "The Ghost of the Gallery" (2019)
* "The Shadow of the Stone" (2019)
* "The Trial of the Treasure" (2020)
* "The Hunt for the Hidden" (2020)
Non-fiction
* "The History of Mystery" (2016)
* "The Science of Secrets" (2017)
* "The Art of Adventure" (2018)