PART OF BBC TWO'S BOOK CLUB BETWEEN THE COVERS TWO SISTERS ON TRIAL FOR MURDER. THEY ACCUSE EACH OTHER. WHO DO YOU BELIEVE? '911 what's your emergency?' 'My dad's dead. My sister Sofia killed him. She's still in the house. Please send help.' 'My dad's dead. My sister Alexandra killed him. She's still in the house. Please send help.' One of them is a liar and a killer. But which one? ******** Your favourite authors LOVE Fifty Fifty, the follow-up to the bestselling novel Thirteen: 'A terrific writer. He has talent to burn.' Don Winslow 'Trust me - it will keep you guessing until the very end.' Ian Rankin 'Unpredictable, daring and completely compelling. Top notch writing.' Alex North 'Very clever, darkly funny, moving, fast-paced.' Jane Casey 'Steve Cavanagh writes the best hooks in the business' Mick Herron 'Absolutely brilliant. Addictive, clever, pacy. Eddie Flynn is one of my heroes.' Jo Spain 'Intelligent, sophisticated and tense.' Mari Hannah