Sole Survivor (Mars Diaries)

"Director Rawling and three other scientists are trapped by a cave-in. Just as Tyce sanders starts a rescue mission, rebels take over the science station. They threaten to kill their hostages, one at a time, until their demands are met--and time's running out. If Tyce can't stop the rebels soon, the trapped scientists will run out of air. And everyone under the dome will die."--Cover p. [4]