Deep beneath the ice of Jupiter''s moon Europa, life teems in the depths of dark oceans fed by belching, chemical-rich volcanic vents. But more spectacular discoveries of life elsewhere in the cosmos have left Europa little more than another commercial stopover with an orbital station and a decaying space elevator ferrying cargo and personnel to and from the moon. But when one of the massive elevators stops midway with no communication from the crew aboard, a rescue team soon discovers that the stranded elevator is transporting a deadly cargo from another world.
