Terrified he may be going mad, he must keep the disturbing skill secret. But when it proves helpful in tracking his would-be killer, he has no choice but to embrace the newfound power. The retrocognition leads him to the house of a man recently deceased, where he encounters the clever and intriguing Miss Matilda Wren—who may be able to help him solve the many questions raised by the attack.

Lady Vivienne Harlowe doesn't fear much, and delves into life's experiences head on. But for years she's been plagued by the unsolved murders of her parents and the strange disappearance of other family members. Now, in the face of a new tragedy, she vows to follow every twist and turn until she's solved the dark deeds at Mablethorpe Castle.

Amelia Amesbury—widow, mother, and countess—has a secret. Amelia writes for a London penny paper, doling out advice on fashion, relationships, and manners under the pen name Lady Agony. But when a lady’s maid writes Amelia to ask for advice when she believes her mistress has been murdered—and then ends up a victim herself—Amelia is determined to solve the case.

London, 1941: Miss Jane Treen is at her desk, strong black coffee in hand and fluffy ginger cat by her side, when her top-secret government work is interrupted by an urgent call to Devon. A woman has been found dead in a lake in a place where she shouldn’t have been. Jane needs to gather the clues and find the killer before someone else from the agency gets hurt… Shy and handsome code-breaker Arthur Cilento is bewildered by the arrival of the efficient Miss Treen and her cat Marmaduke.

May 1941. One of the senior choristers of St Paul's Cathedral choir, Dr Edwin Roberts, is found beaten to death in the crypt of the Cathedral. Coburg and Lampson are called in to investigate, and when they get there, Coburg is pleasantly surprised to be greeted there by Arthur Waterson, now sporting a dog collar, someone he was at Eton with many years before. Waterson believes that there may be a connection between the very precious books that are houses in the Crypt and Dr Roberts' work at Bletchley Park.