The Lazarus Effect

When the crew of the colony ship Lazarus is woken mid-flight on their journey to Epsilon Eridani, they know immediately that something has gone wrong. The ship's computer has gone awry and is trying to kill them - but yet another threat looms outside: a mysterious object on an intercept course with the Lazarus. Beset on every side, can the crew survive long enough to repel the invaders?