A snowy Christmas night. A cursed chalice. A crime centuries in the making.

The Medieval Room at the British Museum in the early hours of the Christmas Sleepover is the last place Dr Prudence Grey expects to find a body.

At least, not a newly murdered one. She's used to the mummified kind.

After years of solving New York homicides, DCI Callum Green's hoping his first Christmas back at New Scotland Yard will be murder-free.

Dr Grey's grisly find soon puts paid to that.

Together, Green and Grey must follow a trail of cryptic clues hidden in the museum's ancient collections, unearthing secrets that link the crime to a saga of power, betrayal, and obsession.

As the killer's plan unfolds and more lives hang in the balance, Prudence and Callum are up against a murderer intent on bringing a dark history back to life.

Fans of LJ Ross, Tess Gerritsen, Elly Griffiths, Kate Ellis and Dan Brown will love this mix of murder mystery, police procedural, cryptic intrigue, and a slow-burn romance.

Get wrapped up in a good mystery this Christmas. Lose yourself in UNHOLY GRAIL today.

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• Mystery, Thriller & SuspenseMysteryCozyAnimals

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• Print Length: 361 Pages
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