Juvenile Collection (Library of Congress)

The fifteen-year-old Murry twins, Sandy and Dennys, are accidentally sent back to a strange Biblical time period, in which mythical beasts roam the desert and a man named Noah is building a boat in preparation for a great flood. When twins Sandy and Dennys Murry accidentally interrupt one of their father's experiments, they are hurtled out of their ordinary world, across time and space into a mysterious desert land populated by unicorns, seraphim,...