'That's no calculator, Timmo, it's way more complicated than that. But what on earth is it?' Things get seriously weird for Tim Townsend when he meets a pair of mice with an extraordinary calculator. Suddenly he and his sister Coral are plunged into an adventure full of strange new technology, mind parasites and visitors from very, very far away. These visitors want to go home, but how can they when the strongest power in the galaxy is determined to stop them? An adrenaline-filled adventure story with a cast of zany characters and a heart-stopping climax.