On Jupiter's moons great treasure awaits a daring man—and so does Death! I His employer had paid enormously to have the small ship camouflaged as a chunk of asteroid-belt rock, and Gil Murdoch had successfully maneuvered it past the quarantine. Now it lay snugly melted into the ice; and if above them enough water had boiled into space to leave a scar, that was nothing unique on Ganymede's battered surface. In any case, the Terran patrols weren't likely to come in close. Murdoch applied heat forw