A review by siria
The Sleeping Partner: A Sarah Tolerance Mystery by Madeleine E. Robins

4.0

This third installment in the alt-historical adventures of Miss Sarah Tolerance finds our heroine tasked with tracking down a young woman who's eloped from her father's house. Miss Tolerance's search for the missing Evadne brings her into contact with the seedier side of Regency London. The Sleeping Partner has more grit to it than the previous two books—this is a kind of "Regency noir"—and higher emotional stakes than the second one. Madeleine Robins has a knack for creating a heroine who is independent-minded enough to walk her own path, but is not unrealistically anachronistic in her thinking (i.e., she's not Not Like the Other Girls.)

Given the lengthy gap between publications and the change in publishers, I fear the Sarah Tolerance books are likely to remain a trilogy. However, while Robins clearly sets up some plot points/relationship arcs here which could be picked up in future installments, The Sleeping Partner does also work as a conclusion.