1875: A small-time crook is rescued from death by an ambitious doctor. Released from prison, he uses the new London sewage system as a highway for crime. Above ground he creates a respectable image for himself, at the heart of high society. But which is the real Montmorency? Can he fight off the dangers that threaten both his lives?

‘Montmorency is one of the most original, witty and delicious books to have arrived for a very long time…macabre, funny, suspenseful and humane… an instant classic.’ Stephen Fry

The first book in the award-winning Montmorency series, the winner of the BBC Blue Peter Book I Couldn’t Put Down award.