The Supernormal Sleuthing Service Books in Order

The Supernormal Sleuthing Service books are middle grade mysteries with a great elevator pitch: what if your new home was a fancy New York hotel for monsters? The Lost Legacy introduces Stephen, whose father takes a job as head chef at the New Harmonia. Stephen thinks the move is just another big life upheaval. Then he learns the hotel's guests are vampires, dragons, gargoyles, bigfeet, and other beings who prefer the much nicer label of supernormals.

Stephen is not just observing this hidden world from the outside. He discovers he has ties to it himself, which means the hotel is suddenly more than his dad's workplace. It is a place where he might belong, if he can survive it. That gets harder when a magical artifact vanishes and Stephen ends up framed for the theft. To clear his name, he has to team up with new friends and start asking questions in a place built on secrets.

Hotel Monster is a pretty good nickname for the whole setup.

The setting does a lot of the heavy lifting here, in the best way. The New Harmonia feels like an old-school adventure space full of rules, hidden corners, suspicious staff, and creatures with their own habits and rivalries. Because the series is set in New York, Bond can also take the magic beyond the hotel doors. In The Sphinx's Secret, the mystery reaches the New York Public Library, where the stone lions turn out to be sphinxes guarding a cache of magical objects. That is exactly the kind of reveal these books like, taking a familiar place and turning it just enough to make it strange.

Across both books, the bigger arc is about Stephen learning how to live with uncertainty. He has to adapt to a new city, a new identity, and a hidden society that can be funny one minute and dangerous the next. The friendships matter, and so does the father-son thread running through the series. For all the monster mayhem, there is a steady emotional core about finding your footing when life changes without asking your permission.

Spooky, yes. Mean-spirited, no.

That tone is probably the series' real sweet spot. These are mysteries with cursed objects, spells, and looming consequences, but they stay accessible, quick, and fun. Readers who like puzzles, creature-filled worlds, and kids who solve problems with nerve rather than brute force will feel at home here. The books are playful about their monsters, but they take Stephen's sense of wonder and worry seriously, which makes the whole hidden world easier to believe in.