The outstanding new psychological thriller from the 5 million copy-bestselling author of Here to Stay and The Magpies'The plot swerves in an entirely unpredictable direction , providing an intriguing mystery that turns on their mentor's work on the behaviour of psychopaths' Sunday Times‘I loved this... So clever and fresh with a wild and incredibly satisfying twist’ Lisa Jewell 'I devoured it in two compulsive sittings. 'Gripped' doesn't even come close!!' Marian Keyes 'A fast-paced thriller, full of twists upon twists. Hugely enjoyable' Alex Michaelides'Twisty, clever, often funny, always inventive' Elly Griffiths--Summer 1999. Will joins five other idealistic graduates working for an eccentric psychology professor. They’re going to launch a website to change online dating forever. No-one expects it to end in tragedy. Twenty-five years later, Will gets an invitation: a dinner party. A chance to see the old gang again. But as soon as he arrives, something doesn’t seem right. There’s an unexpected guest. The hosts are clearly keeping a secret. And on the way in, Will is sure he heard crying. Everyone has something to hide about what really happened that summer. But only one of them is willing to kill to find the truth…--PRAISE FOR MARK EDWARDS'I kept wanting to tear my eyes away but had to keep reading' IAN RANKIN'Edwards is at the top of his game' ERIN KELLY'Twisting and terrifying, the kind of haunting, pacy, spine-chiller that Mark Edwards is the absolute master of.' CHRIS WHITAKER 'I was hooked by this clever, fast paced and addictive thriller... I loved it' CLAIRE DOUGLAS'Fast-paced and twisted: it’s another Mark Edwards sensation' CLARE MACKINTOSH'Tense, artful and satisfying' LOUISE CANDLISH'Highly entertaining...kept me guessing to the very last page' LIZ NUGENTReaders LOVE The Wasp Trap'The best thriller I've read all year' 5 ***** Netgalley review'Full of surprises, twists, turns, lies - I couldn't put this down' 5 ***** Netgalley review'I forgot my plans for the day because of this book and honestly... no regrets' 5 ***** Netgalley review'This book deserves the hype' 5 ***** Netgalley review'Take a bow, Mark Edwards. Once again you've given us a tension filled, edge-of-the-seat thriller' 5 ***** Netgalley review