4th book. Book starts out with a corpse found in the driver's seat of a cab. Other bodies which have been dug up are also being found. An act of blackmail also leads to murder and Thomas Pitt is beside himself trying to find out what is going on. Aunt Vespasian makes a 2nd appearance and tries to help Charlotte and Thomas with this baffling mystery. We get another look at Victorian social life and the child labor laws. Great read from Anne Perry.