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At eleven years old, Morgan Sheppard solved the murder of his Maths teacher when everyone else believed it to be a suicide.

Twenty-five years later…

Morgan Sheppard wakes up handcuffed to a bed in an unfamiliar hotel room, with five strangers waking up around him. In the bathroom – a corpse. One of the people in the room is the killer and Sheppard has three hours to solve the murder.

If he doesn’t find the killer, they all die.

As everyone in the room panics, Sheppard starts to unravel an impossible case, where the real mystery might stretch all the way back to his childhood.
Read by Tom Lawrence
(p) Orion Publishing Group 2018


Guess Who boils with claustrophobic intensity. Packed with gripping twists and turns, Guess Who is an inventive, entertaining locked room mystery that kept me utterly hooked.
Adam Hamdy
An ingenious twisty mystery in a totally unique setting.
Claire McGowan
An impressive debut and a sign of great things to come.
James Oswald
Chris McGeorge's Guess Who is a fresh take on the locked room murder mystery. The plotting is intricate, the characters well drawn, and the pace never lets up as it drives headlong to the surprising end.
David C. Taylor, Edgar-nominated, Nero Wolfe Award-winning author of Night Life
Guess Who is an incredibly satisfying, intelligent thriller running at break-neck pace right until it's closing pages. A marvellous debut.
Francesca Dorricott, author of After the Eclipse
One hotel room. Six strangers. One corpse. Good fun.
Cavan Scott
This is brilliant, so cleverly written and still surprising despite the team's love of escape rooms.
Woman's Way
A FANTASTIC whodunnit with more twists than a Great Hotel corkscrew.
Jenny Blackhurst