Every Story Opens Another World.
Welcome to the storytelling universe of Sebastian Hart. Discover four distinct mystery series—spanning Maine coastal archives, paranormal forensic visions, maritime folklore, and gaslit stage illusions.
What Readers Are Saying
“Sebastian Hart writes with a level of warmth, atmosphere, and layered plotting that reminds me of golden-age mysteries. The dynamic between Elias and Silas is quiet, respectful, and completely addictive.”
Claire M.
“The ten-second memory premise is pure genius. Dr. Adrian Vale and Detective Marcus Rowe don't take easy shortcuts; they work the evidence. I devoured all five books in a single weekend.”
David K.
“Julian and Elliot on Lantern Row had me laughing out loud on one page and frantically guessing the puzzle on the next. The stage-magic cozy angle is fresh, theatrical, and so charming.”
Eleanor T.
“Never Answer the Third Signal gave me chills and cozy comfort in equal measure. The coastal Maine atmosphere is thick with salt, fog, and old secrets you just can't stop reading.”
Sarah L.
Featured Book Series
Explore each unique corner of Sebastian Hart's fiction. Whether you prefer small-town coastal records, paranormal forensic puzzles, or gaslit theatrical rivalries, there is a door waiting for you.
The Fog Harbor Mysteries
“Which record is lying this time?”
Small-town coastal cozy mysteries with closed-case investigations, archival clues, maritime secrets, and a slow-burn bond between a bookish archivist and the town's police chief.
📍 Setting: Fog Harbor, Maine
👥 Key Leads: Elias Thorne & Silas Kane
The Last Ten Seconds Mysteries
“The dead in Grayhaven do not speak in full sentences. They leave behind ten seconds.”
When medical examiner Dr. Adrian Vale touches the newly dead, he witnesses their final ten seconds. Together with Detective Marcus Rowe, they turn broken fragments into ordinary forensic evidence.
📍 Setting: Grayhaven Coastal Town
👥 Key Leads: Dr. Adrian Vale & Detective Marcus Rowe
The Fog Harbor Sea Legends
“Never answer the third call through the fog.”
Ten maritime legends along the treacherous Maine coast. Elias and Silas investigate historic wrecks, foggy shore stations, and the truth hidden beneath sixty years of coastal superstition.
📍 Setting: Maine Foggy Coastline
👥 Key Leads: Elias Thorne & Silas Kane
The Vespera Double Act Mysteries
“Come for the mystery. Stay for the double act.”
A legendary retired mentalist who runs an eccentric bookshop and a sharp former detective who runs a magic shop next door. Two unlikely friends solve impossible puzzles and theatrical crimes.
📍 Setting: The Gaslit City of Vespera
👥 Key Leads: Julian West & Elliot Rowan
Latest Releases & Starters
Hand-picked entry points and latest releases across the series. Start anywhere or pick your preferred flavor of mystery.
New Release
Never Answer the Third Signal
A Coastal LGBTQ+ Cozy Mystery
Sixty years ago, a girl didn't answer. The town called her a coward. Now three horn calls have sounded across the harbor again. Bookseller Elias Thorne and Police Chief Silas Kane investigate ten maritime legends, starting with an old shore station, a rescue memorial, and a light where no light should be.
New Release
The Seer's Thirteenth Letter
A Cozy Mystery with a Bookshop Mentalist and a Magic-Shop Detective
Julian West, a charismatic retired mentalist running a bookshop, and Elliot Rowan, a razor-sharp ex-detective running a magic shop next door, team up to solve the Grand Seer's twelve impossible predictions—and locate the secret thirteenth letter.
The Last Ten Seconds at the Clock Shop
A Small-Town Paranormal Mystery
When Grayhaven's sharp-tongued clockmaker is found dead with all clocks frozen at 10:10, medical examiner Adrian Vale sees the final ten seconds: a brass key, a blue sleeve, and a forced clock hour. With Detective Marcus Rowe, they turn fragments into court-ready proof.
New Release
The Last Ten Seconds at the Dollhouse Museum
A Small-Town Paranormal Cozy Mystery
Beloved museum guide Judith Pell is found dead beside the town's treasured dollhouse. Adrian sees two blue doors—one miniature, one life-sized. To verify what he knows, Adrian risks the dangerous Second Echo.
Murder in the Curiosity Nook
A Small-Town LGBTQ+ Cozy Mystery
Elias Thorne wanted a quiet life running a seaside archival bookshop. But when a rare edition and a body are discovered behind the blue door, Elias and Police Chief Silas Kane must untangle decades of harbor secrets.
New Release
Poisons and First Recipes
Season 2 Finale & Milestone Release
The landmark 12th volume of the beloved Fog Harbor series. When an estate auction uncovers a handwritten culinary notebook with deadly annotations, Elias and Silas face their most intimate inquiry yet.
Sebastian Hart
Author
Meet Sebastian Hart
Sebastian Hart writes atmospheric cozy mysteries, closed-case investigations, and paranormal puzzles set in coastal towns and gaslit cities. Across his work, Sebastian returns to themes of truth, trust, quiet devotion, and justice built through careful forensic proof and human connection. When he is not writing, he can usually be found drinking Earl Grey tea, scouring antique bookstores, or listening to the Maine tide.
Every book in Sebastian's catalog is written with respect for the reader's intelligence: fair-play clues, quiet atmospheric details, deeply drawn small towns, and partnerships where characters build honest trust through action rather than easy promises.