'As a TV quiz writer and verifier, Sarah Dunnakey is the best in the business, so it's small wonder this book is such an inventive combination of gripping read and fiendish puzzles. If you liked BBC's Ludwig, you'll love this.' Paddy Duffy, panellist on Radio 4's Round Britain Quiz

'Wonderfully well crafted and delightfully devilish at every turn – it's Christmas crime with a head scratchingly fantastic twist.' Jonathan Whitelaw, author of Murder in Tinsel Town

'Such a treat – fiendishly clever murder mysteries along with puzzles that will keep you guessing for ages … I can’t think of a better present for everyone you know. Just remember to keep a copy for yourself.' Amanda Lees, author of The Dictionary of Crime

'Very, very clever and like nothing I've ever read before,' Alex Pine, author of The Killer in the Cold

'A perfect stocking filler this Christmas for anyone who enjoys a good yarn and is an enthusiastic puzzler.' Liz Fielding, author of Murder Under the Mistletoe

'Utterly addictive – never has the phrase "one more chapter before bed" been so literarily appropriate.' G.D. Wright, author of Into the Storm

'A totally unique book, combining great murder mysteries with proper brain-teasers. I loved it, and I'm sure other puzzle fans will too.' Antony Johnston, author of The Dog Sitter Detective