(, New edition)

Young, independent and all too aware of her human frailty, Sister Agnes finds her strength tested when she is seconded to Silworth, a women's prison in Southwark. When bitterness erupts into murder, she realizes she too has become entangled in a dark world stretching further than the prison walls.

(, New edition)

Death is an everyday occurrence at the London teaching hospital of St. Hugh's, as Sister Agnes is well aware. But when an assistant in the pharmacology department dies, the handling of her death arouses Agnes's suspicions, and she finds herself at the heart of a web of murderous intrigue.