The Worlds of Big Finish Trailer

From the streets of Edwardian London to the corridors of a nearinfinite library in the distant future, a single book holds the key to the fate of life on Earth. Some believe it predicts our future and the apocalypse with unnerving accuracy. Others will stop at nothing to destroy it, and will chase it from one side of the universe to the other; from a country house in the Roaring Twenties to the casinos of Mars, and from 221B Baker Street to the terrifying desert world of Sisyphus IX Featuring Abby a