He becomes embroiled in the plight of the Next: the super-bright post-humans who are beginning to emerge from their 'long childhood' in a hidden community located deep in the Long Earth. . ___________________The Long Mars is the third in The Long Earth series.
The 3rd book in the "Long Earth" series, from the 2 bestselling authors of fantasy and science fiction. Set in 2040-45 in the years after the cataclysmic Yellowstone eruption, as the populations flee Datum Earth to myriad Long Earth worlds.