A prison guard teams up with an ex-detective inmate to solve a brutal murder in this thrilling mystery for fans of Rachel Abbott, Ed James, and Joy Ellis. Ariadne Teddington is surrounded by people who lie, but that is to be expected when you work in prison where every man claims to be innocent. Charlie Bell, an ex-police detective, now finds himself in that prison serving time for murder after taking the law into his own hands. Now, when a fellow inmate is killed Charlie is asked to investigate the case from the inside. Soon he finds himself working with Ariadne, but she is a guard, he is an inmate and some lines should never be crossed . . . Can two people on different sides of the law come together to solve the case? And do the answers lie closer to home than anyone ever imagined? Praise for Locked Up “Tense and claustrophobic, with a spine-chilling denouement!” —Caro Ramsay, author of the Anderson and Costello series “A brilliant new and authentic voice in crime fiction—GB Williams knows how to tell a story and tell it well.” —Katherine John, author of the Trevor Joseph series and By Any Name