Premeditated Myrtle by Elizabeth Bunce (2020) Algonquin Young Readers

A delightful whodunit staring Myrtle Hardcastle, the daughter of the local prosecutor in an English town.  Her next-door neighbor died, and no one will listen to Myrtle when she says the woman was murdered.  Between her governess, her cat, her father, and a woman who might be trying to become Myrtle’s stepmother, the mystery takes a circuitous route to the solution.