Usually, London police inspector Thomas Pitt didn’t deal with fires, especially outside his jurisdiction. But this was a case of arson. Exactly arson happened in Highgate—a very prosperous suburb of the capital. The scene of the crime was clear: Dr. Shaw’s house caught fire in four places at once. At the time, the doctor was with yet another patient and was not harmed, but his wife, Clemency, died. High command assigned this case to Pitt. As usual, his wife Charlotte couldn’t stay out of it…