How far would you go to save the human species? Heart to blood, muscle to bone, tourist flesh above my own. It's the bridgers' directive: risk your own life to save tourists bridging to alternate worlds. Bridger Infinity Fowler has no qualms about the directive. Risking death is just what bridgers do. But now the earth is dying. Bridgers have a new directive-save as many humans as possible, even if some must be sacrificed in...