Locked Library Mysteries
A nine-book historical cozy mystery saga of private libraries, inherited houses, coded marginalia, missing manuscripts, forged letters, rare collections, and family histories guarded as carefully as locked rooms.
Standalone mysteries with one long family-collection arc
Each volume delivers its own locked-library mystery while continuing a larger story around Rose Vale, the Hartmoor Collection, forged provenance, Elspeth Marwood, and collectors who value ownership more than truth.
Start with Book 1
The Key in the Hartmoor Folio begins at Hartmoor Abbey with a house party, a locked private library, and a brass key hidden inside a hollowed folio.
Start the SeriesLocked Library Mysteries in Order
The Key in the Hartmoor Folio
A Hartmoor Abbey house party, a locked private library, and a brass key hidden inside a hollowed folio open the wider mystery of the Hartmoor Collection.
The Vanishing Marginalia
An altered rare devotional text and disappearing annotations point toward forged provenance inside a subscription reading room.
Murder in the Snowbound Stacks
A snowbound manor, a disliked heir, footprints, locked doors, and the Blackwood Ledger turn isolation into a classic closed-circle investigation.
The Catalogue of False Names
At a women’s college, false bookplates and a librarian’s disappearance draw the investigation toward Elspeth Marwood and the history concealed by altered ownership records.
The Body in the Reading Chair
A restored public library, ceremonial locked doors, and a donor found in a reading chair make the building’s own routines part of the clue trail.
The Locked Cabinet at Bellweather Hall
An inheritance dispute, a locked cabinet, and domestic books containing hidden research uncover another layer of the Hartmoor Collection story.
The Cipher in the Children’s Library
A coded nursery book in a children’s library points toward a concealed identity and a secret preserved in material meant to look harmless.
The Last Borrower of Marwood House
A lending register appears to show a dead woman borrowing a book after her death, forcing the past and present of Marwood House into the same investigation.
The Secret Library of Hartmoor Abbey
A hidden library at Hartmoor Abbey brings the long-running collection mystery back to its source for the final locked-library case and the full revelation of the conspiracy.
More Secrets Between the Shelves
Bonus stories will fit between the numbered novels and will be clearly marked—for example Bonus Story 1.5 · Read after Book 1. They can explore house parties, archive visits, minor manuscript puzzles, seasonal society events, side characters, or smaller cases that deepen the historical world without interrupting the main Hartmoor Collection arc.
First Locked Library Bonus Story · Coming Later
This space is ready for the first short historical mystery or character-focused interlude between two main volumes.
Vivienne Hartmoor
Historical cozy mysteries of locked libraries, inherited houses, rare books, hidden records, and secrets that refuse to remain safely in the past.
Meet the AuthorBonus Library
Find future Locked Library bonus stories and companion material alongside extras from other Wonder Shelf Books series.
Explore Reader Extras
Wonder Shelf Books 