The Long Earth is open.
Humanity has spread across untold worlds linked by fleets of airships encouraging exploration, trade and culture.

But while mankind may be shaping the Long Earth, the Long Earth is, in turn, shaping mankind – and a collision of crises is looming. More than a million steps from the original Earth a new America is emerging – a young nation that resents answering to the Datum government.

And the trolls – those graceful, hive-mind humanoids whose song once suffused the Long Earth – are, in the face of man’s inexorable advance, beginning to fall silent…and to disappear.

It was Joshua Valienté who, with the omniscient being known as Lobsang, first explored these multiple worlds. And it is to Joshua that the Long Earth turns for help. For there is the very real threat of war…

…a war unlike any fought before.