The book colourfully describes the life of a poverty-stricken young boy, Jaffy Brown, growing up in 19th Century London. Jaffy's life takes a dramatic turn at age 8 when he is saved from being eaten by an escaped tiger, by Jamrach, the tiger's owner. Jaffy then gets a job working with many animals and is sent out to sea to capture a 'dragon'. He finds a huge crocodile and is shiprecked. Cannibalism follows.
Described as ' a novel full of strange sights, pervasive smells and sounds, and curious characters'.