The Twyford Code

Forty years ago, Steven Smith found a copy of a famous children's book by disgraced author Edith Twyford, full of strange markings and annotations. Wanting to know more, he took it to his English teacher Miss Iles, not realising the chain of events that he was setting in motion. Miss Iles became convinced that the book was the key to a secret code that ran through all Twyford's novels. Then she disappeared on a class field trip, and Steven has no memory of what happene