The most compelling novel I have read in years. It is by turns mystifying, frightening, horrifying, moving and, finally, hopeful and joyous. Its cast of well-drawn characters, especially the courageous Sally Lockhart and the Jewish socialist Daniel Goldberg, is unforgettable and its insight into the lives of the dispossessed of 1880s London is imbued with deep understanding and compassion. I have read with pleasure several of Pullman's novels but none has left such a powerful impression as this. What a writer!