The red planet

When the spaceship Jehad blasted off for Mars, millions of miles from earth, four men and one woman placed themselves under the rule of Dr. Lewis Spartan, sadistic, power-mad leader of the expedition. Only after they were well on their way did they learn that Spartan planned to return to Earth alone!By the time the ship reached Mars, jealous rivalry over the love of Gail Loring had turned the Jehad into a crucible of tension and strife. But their internal struggles were nothing compared to the threat of the grotesque Martians who used electrical energy as a weapon of war.Suddenly, the Earthmen had to unite to stave off a massed Martian attack--a flight which, if lost, meant isolation and death on Mars and, if won, meant bucking Spartan's demonic schemes.