A RUSE OF SHADOWS

A mystery that unwinds in reverse adds new twists to Thomas’ Sherlock Holmes–inspired series.

The new Charlotte Holmes novel continues the tense chess game that the gender-flipped Sherlock is playing with Moriarty and an incarcerated acquaintance turned villain. The events are narrated as a series of flashbacks interspersed with an interrogation in which Charlotte is under suspicion of murder. While her friend Inspector Treadles nervously observes, a senior policeman grills the unflappable detective about her recent movements. Even as she gives him a bland account of why she’s crisscrossed the English Channel in recent weeks, readers get drips of information about what she and her family and friends have been up to, all building to a reveal. Two other seemingly unrelated mystery subplots enter the picture, but it’s evident that new events and characters are connected to familiar ones from the past. With allusions to previous novels in the Lady Sherlock series and hat tips to Arthur Conan Doyle’s “The Final Problem” and the Guy Ritchie movie Sherlock Holmes: A Game of Shadows, the plot can be hard to follow, especially for new readers. The consistently well-drawn characters serve as an anchor, and the occasional glimpse of Charlotte’s love for her family and her lover, Lord Ingram Ashburton, adds a needed touch of warmth to the clever but clinical jigsaw structure of the mystery.

Demands a careful reading and knowledge of the Victorian lady detective’s history.