Computers have failed, electricity is extinct, and the race to discover new lands is underway! Brilliant explorer Alexander West has just died under mysterious circumstances, but not before smuggling half of a strange map to his intrepid children—Kit the brain, M.K. the tinkerer, and Zander the brave. Why are so many government agents trying to steal the half-map? (And where is the other half?) It’s up to Alexander’s children—the Expeditioners—to get to the bottom of these questions, and fast.