** spoiler alert **
Fourth book in the Ian Rutledge series. I don't think I like these quite as much as the Bess Crawford ones--the central conceit of Hamish doesn't work for me--but this is still a pretty strong mystery novel. As with Todd's other books, the whole is better than the sum of the parts; there's enough historical detail and interesting characterization to make up for some transparencies and conveniences in the actual mystery. That said, I found the whole "innocent person insisting they are guilty" bit to be a bit tired so soon after reading An Impartial Witness. Perhaps it was my bad luck to pick up the two books where Todd repeats themselves in such quick succession.