05 - Letem Breathe Space by Lester del Rey

In the isolated confines of a spaceship, eighteen men and two women are thrust together for five months, where tension simmers and danger lurks. As the atmosphere grows increasingly toxic, a deadly mystery begins to unfold. Who is orchestrating the sabotage, and why would they risk their own lives in the process? With dwindling air and rising fear, the crew must unravel the enigma before it‚As too late.