In which book (or series of books) do the following characters appear?
1. Polly and Digory
 The Magician's Nephew (from The Chronicles Of Narnia)
2. Sam, Merry and Pippin
 Lord of the Rings
3. Heathcliffe and Cathy
 Wuthering Heights
4. Flopsy, Mopsy and Cottontail
 The Tale of Peter Rabbit
5. Mrs Danvers, the houskeeper
6. Violet, Klaus and Sunny
 A Series Of Unfortunate Events
7. Jean Valjean and Inspector Javert
 Les Miserables
8. Pip, Magwich and Miss Havisham
 Great Expectations
9. Arthur Dent and Ford Prefect
 The Hitchhiker's Guide To The Galaxy
10. Lyra, Lord Asriel and Mrs Coulter
 Northern Lights (a.k.a. The Golden Compass in North America)