Book conservator turned reluctant sleuth Tory Van Dyne once again joins forces with the (possible) ghost of Agatha Christie to solve a murder much too close to home in this spectral sequel.

It’s been six months since Tory Van Dyne first encountered a woman in the Agatha Christie Room of the Mystery Guild Library claiming to be the author herself on holiday from the Great Beyond. Mrs. Christie has long since disappeared back to . . . wherever she came from. And Tory has returned to her safe, sane, sensible—and, let’s face it, boring—life.

That is, until a rare edition of Christie’s Murder in the Mews is somehow stolen from under the noses of two dozen library patrons, as well as a famous—and exceedingly vain—Hercule Poirot impersonator, gathered in the Christie Room to celebrate the library’s fiftieth anniversary. And, to make matters much, much worse, a guest is found bizarrely murdered in the library’s back alley.

Thankfully, Mrs. Christie reappears just in time to guide Tory and her fellow sleuths—snarky librarian Adrian Gooding, computer whiz kid Mairead Butler, flighty cousin Nic, and the hot detective himself, Sebastian Mendez-Cruz—as they work to solve a seemingly impossible crime. But nothing is impossible with Mrs. Christie on the case. . . .