The next unmissable novel* in the Sunday Times bestselling, multi-award-winning Washington Poe series. Poe and Tilly fans: be prepared for the most twisted thrill-ride so far . . .

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'Another standout entry in a series that keeps setting the bar higher', Heat

'The Final Vow is everything a thriller should be: clever, compelling, and packed with unforgettable characters. Gripping, darkly funny, and utterly addictive - MW Craven has done it again', Rachel Abbott

'...ingenious, absorbing, cynical and funny', Literary Review

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An invisible killer with a 100% success rate. No one is safe. Not even those closest to Washington Poe . . .

A shooting at Gretna Green. A bride is murdered on her wedding day, seconds after she slips on her new ring. It's brutal and bloody but she isn't the first victim and she won't be the last. With the body count now at 17, people are terrified, not knowing where the sniper will strike next.

With the nation in a state of panic, the police are at a loss and turn to Washington Poe and Tilly Bradshaw - the only team who just might be able to track down a serial killer following no discernible pattern and with the whole country as his personal hunting ground. Can Poe and Tilly stop an unstoppable assassin, who never misses his mark and never makes a mistake? Or will he find them before they find him...

*Previously listed as The Third Light

EVERYONE LOVES M.W. CRAVEN:

'Washington Poe is a brilliant creation from one of the finest and most inventive crime writers of today' Peter James

'Mesmerising, macabre and magnificent. Poe and Tilly are unstoppable' Chris Whitaker

'If you haven't read any M.W. Craven yet, fix that immediately' S. A. Cosby

'I've been following M.W. Craven's Poe/Tilly series from the very beginning, and it just gets better and better ' Peter Robinson

'Poe and Tilly books are a joy' Steve Cavanagh

'In Tilly and Poe, M.W. Craven has created a stand-out duo who are two of the most compelling characters in crime fiction in recent years' Fiona Cummins