Train enthusiast Francis Humphreys took his last breath while relatives and neighbors visited downstairs. But if everyone was downstairs, who could have stolen into Uncle Francis's study, killed him, and escaped? Mrs. Jeffries will have to lend her downstairs common sense to this upstairs murder mystery.

The ladies of the Mayfair Orchid and Exotic Plant Society are known for a bit of friendly rivalry, but the backstabbing has never been literal--until now. Mrs. Jeffries begins, along with the rest of Inspector Witherspoon's household and friends, will have to dig up the past to figure out which gardening gentlewoman had a grudge worth killing for.