Driven out by a violent band of claim-jumping miners, Sam Clemens and his partner Calvin strike out into unexplored Lunar territory - and now they're heading the expedition! But when disaster threatens their former colleagues, the Clemens-Bemis Expedition must take on refugees. With supplies running short and dissent rising, is mutiny over the all-too-close horizon?Then Sam encounters the impossible: an unknown girl in a pressure suit, who manages to save his life, introducing him to the mysterious cavern dwellers of Home. The "young sirs" of the Expedition are treated royally by the Whoa and Earls of Home, but their safe haven hides a terrifying secret that Sam must discover before it’s too late.Join Sam and Calvin, plus Perkins, Chalk and the former Deirdres as their harrowing, astonishing, sometimes hilarious adventures continue in Home, book three of the epic saga: Mark Twain on the Moon.