In 1944, in a secret Underground station somewhere in London, plans are being drawn up for the invasion of Europe: an invasion to bring the Second World War to an end. But there's a spy afoot and a plan to assassinate the British prime minister, Winston Churchill and stop the invasion.

It's 1965, and best friends Tommy and Howie are helping clear out an old, disused Underground station when they find a hidden door. They force it open and find themselves transported back in time to a secret bunker in war-torn London.

They discover the spy. They discover the assassination plot. But there's one big problem:

They're invisible!

Somehow, they have to convince the only man who can see them, a lowly corporal, that he's not going mad and that the prime minister's life is in danger. But how can he convince his superiors without any proof?

Can they save a life? Can they help bring the war to an end?

The race is on…

Sign up now to get the most out of Books2Read

Discover something great at Books2Read.

Thanks for signing up for Books2Read notifications!