DOUBLE OR DIE by Charlie Higson - Puffin Paperback

In a North London cemetery, a professor is kidnapped at gunpoint. A suspicious letter crammed with cryptic clues arrives at Eton. Once the code is cracked, James Bond has just 48 hours to save the professor from the dark forces that threaten to destroy them both. And if the professor can't escape, it's not only his future under threat. It's the rest of the world's...