Leave the Grave Green

When Connor Swann, the dissolute son-in-law of renowned and influential Sir Gerald and Dame Caroline Asherton, is found floating in a Thames River lock, the circumstances eerily recall a strangely similar tragedy. Twenty years ago, the Ashertons'' young son, Matthew, a musical prodigy, drowned in a swollen stream while in the company of his sister Julia -- Connor Swann''s wife.

Police Superintenda...