Aggie Morton lives in a small town on the coast of England in 1902. Adventurous and imaginative but deeply shy, Aggie hasn't got much to do since the death of her beloved father... until the fateful day when she crosses paths with twelve-year-old Belgian immigrant Hector Perot and discovers a dead body on the floor of the Mermaid Dance Room! As the number of suspects grows and the murder threatens to tear the town apart, Aggie and her new friend will need every tool at their disposal, including their insatiable curiosity, deductive skills and not a little help from their friends to solve the case before Aggie's beloved dance instructor is charged with a crime Aggie is sure she didn't commit.

Filled with mystery, adventure, an unforgettable heroine and several helpings of tea and sweets, The Body Under the Piano is the clever debut of a new series for middle-grade readers and Christie and Poirot fans everywhere, from a Governor General's Award-nominated author of historical fiction for children. (From Tundra Books)

Aggie Morton, Mystery Queen is for readers aged 10 and up.

Marthe Jocelyn is a Toronto-based writer of historical fiction for children and an illustrator. She is the author of over 20 books, including The Invisible Enemy and Mayfly. She was nominated for a Governor General's Literary Award for young people's literature — illustrated for her 2000 picture book Hannah's Collections.