1. In the Time of Kings: This historical fiction series consists of three books that tell the story of King Arthur and the Knights of the Round Table.
2. The King's Shadow: Another historical fiction series, set during the reign of Henry VIII, that reimagines the events of the period.
3. The Spy's Wife: A suspenseful novel set during World War II that follows a British woman who becomes entangled in espionage.
4. A Song for the Shadows: A historical mystery novel set in 14th-century England, where a young woman investigates a series of murders.
5. In a Glass Darkly: This collection of short stories features various unsettling tales that explore themes of mystery, horror, and suspense.
6. The Queen of Diamonds: A historical novel that tells the story of Elizabeth Woodville, the wife of King Edward IV and one of the most influential women in 15th-century England.
7. The Secret Keeper: A historical fiction novel set during the English Civil War that follows the intertwining lives of three women from different social classes.
8. The Devil in the Belfry: A Gothic horror novel set in a remote village where a series of disturbing events unfold.
9. The House at Angel's Peak: A supernatural thriller that tells the story of a young woman who discovers a mysterious house with a dark past.
10. The Hollow Tree: A Gothic horror novella that explores themes of isolation, guilt, and the boundaries between reality and the supernatural.
These are just a few of the books written by R. M. Burch, spanning different genres and historical periods while often incorporating elements of mystery and suspense.