1. All of these are Terry Pratchett novels, except? 'The Truth' 'The Dark Side Of The Sun' 'Truckers' 'Doubleday'

2. All of these are Stephen Donaldson books, except? 'A Dark And Hungry God Arises' 'White Gold Wielder' 'The Carpet People' 'A Man Rides Through'

3. All of these are works by Douglas Adams, except? 'The Long Dark Tea Time Of The Soul' 'The Hitchhikers Guide To The Galaxy' 'The Man Who Killed His Brother' 'The Restaurant At The End Of The Universe'

4. All of these are fantasy efforts by Stephen King, except? 'The Gunslinger' 'Dirk Gently's Holistic Detective Agency' 'The Drawing of the Three' 'The Wastelands'

5. All of these are books by J.R.R. Tolkien, except? 'The Fellowship of the Ring' 'The Power That Preserves' 'The Two Towers' 'The Return of the King'

6. All of these are works by Terry Brooks, except? 'A Knight of the Word' 'Wizard In Glass' 'Angel Fire East' 'Black Unicorn'

7. All of these are novels by Arthur C. Clarke, except? 'Childhood's End' 'Only You Can Save Mankind' 'The Hammer of God' 'Rendezvous With Rama'

8. All of these books are by Isaac Asimov, except? 'Pebble In The Sky' 'A Fall of Moondust' 'The Naked Sun' 'Foundation's Edge'

9. All of these are books by Ray Bradbury, except? 'The Martian Chronicles' 'Men At Arms' 'Something Wicked This Way Comes' 'Long After Midnight'

10. And finally, just to be topical, all of these are books by J.K. Rowling, except? 'Harry Potter and the Goblet of Fire' 'Harry Potter and the Prisoner of Azkaban' 'Harry Potter and the Magic Wand' 'Harry Potter and the Chamber of Secrets'