In Ben Bova's novel JUPITER, physicist Grant Archer led an
expedition into Jupiter's hostile planetwide ocean,
attempting to study the unusual and massive creatures that
call the planet their home. Unprepared for the hostile
environment and crushing pressures, Grant's team faced
certain death as their ship malfunctioned and slowly sank to
the planet's depths. However one of Jupiter's native
creatures--a city-sized leviathan--saved the doomed ship.
This creature's act convinced Grant that the huge creatures
were intelligent, but he lacked scientific proof.
Now, several years later, Grant prepares a new expedition to
prove once and for all that the huge creatures are
intelligent. The new team faces dangers from both the
hostile environment and from humans who will do anything to
make sure the mission is a failure, even if it means
murdering the entire crew.