DI Tess Fox's first murder scene has two big problems. One, the victim was thrown from the balcony of a flat locked from the inside. Two, Tess knows him. But the biggest problem of all is Tess's half-sister, Sarah. She has links to the deceased and has the skills and criminal background to mastermind a locked-room murder. But she's a con-artist, not a killer. When two more bodies turn up, Tess now has three locked room mysteries to solve and even more reason to be suspicious of Sarah. Can she trust someone who breaks the law for a living, even if she is family? Review 'J L Blackhurst… must have a degree in Fun Engineering… this book's got it all' the Morning Star 'An ending I never saw coming' Faith Martin 'Twisty, tricksy and whip-smart … crackles with tension and humour' Marion Todd 'So original, so fresh and very funny' T. Orr Munro ‘I loved this book! It's deliciously complex - a mystery that really makes you think, with characters that refuse to be pigeonholed. I turned the last page and wanted more' Imogen Clark ‘The perfect Summer Holiday Read. Filled with murders, twists, feuding sisters and a real heart' Derek Farrell ‘Wowzers. It's a brain-teasing, page turning, triple locked room puzzle of a read! Loved the fresh and unique detective and amateur sleuth duo. A total must-read!' Steph Broadribb About the Author J.L. Blackhurst is a pseudonym for Jenny Blackhurst who was born and grew up in Shropshire, where she still lives with her husband, two boys and two beagles. She has a Masters degree in Occupational Psychology and has worked in administration for the Fire Service and retail management before leaving to write full time. She wrote her first book, How I Lost You after giving birth to her son in 2011 and since has written seven psychological thrillers, her first of which won her a silver Nielsen award and became a kindle number one bestseller in the UK and a Spiegel Bestselleren in Germany. She can solve a Rubix cube in three minutes.