PC Lucy Halliday Books in Order

Police dog handler Lucy Halliday and her search dog discover a killer's dumping ground in Gallows Wood. Hoping it may explain her husband's disappearance, Lucy risks becoming too personally involved as the investigation's own secrets deepen.

New evidence turns a woman's decade-old disappearance into a murder investigation at her abandoned house. Lucy and her police dog uncover remains, but tensions with Jack Ellis and secrets within the missing woman's family complicate the search for answers.

Lucy Halliday and her police dogs search for a missing three-year-old while Jack Ellis confronts memories of his own vanished childhood friend. The child's family keeps hiding information, costing investigators precious time as they pursue her trail.

A bomb on Oxford Street collapses a building and traps people beneath the rubble. Lucy Halliday, her explosive-detection dog Otto and counter-terrorism veteran Jack Ellis race to identify those responsible before another attack strikes London.