The final adventure in the atmospheric Hecate Cavendish series from New York Times bestselling Paula Brackston - a magical series about an eccentric young Victorian woman who can see ghosts.

In her role as Assistant Librarian at Hereford Cathedral, Hecate continues to be guardian of the magical medieval map, and custodian of the ancient chained library. Equally important to her is her family of ghosts; the lost souls who haunt the centuries-old building, and who she has come to care about deeply. When a heartbroken Welsh warrior appears to her seeking her assistance, she sees it as her duty to help. As her friendship with the glassworker, Gil Wheatley, deepens, she understands the suffering of the lovelorn spirit. However, the arrival of a new Master of the Library throws her position into doubt, and may mean she must leave the cathedral.

Meanwhile, a savage murderer is terrorizing the city. When a second killing shows similarities and no clear explanation, Inspector Winter suspects something supernatural at work and calls on Hecate and her singular skills to help him.

With Hecate’s place in the cathedral no longer secure, her best friend soon to be wed, a growing relationship, everything in Hecate’s life seems in a state of flux. She must put aside her own personal concerns, however, if she is to fulfil her promise to the Welsh nobleman and succeed in stopping the murderous progress of the vengeful phantom who is terrorizing her city.