Read for VPRC. Set in the future, Olivia and her twin brother Aidan, are the sole survivors of a virus that killed everyone onboard their space craft heading to the outer planets. They intercept a distress call from Nathan's planet that has had its illegal colony on a nearby planet destroyed by an alien race, in an inter-species feud over who owns what planet. A ship load of refugees are rescued by Olivia and taken on board, but these settlers are outlaws and Olivia & her brother clash over what to do - drop them off at a nearby planet or take them back to the authorities on planet Earth.
Then strange accidents start befalling the crew as if someone is picking them off, one-by-one.

For mature readers as Olivia and Nathan fall for each other and spend the night together - even getting married by the ship's doctor. Unfortunately, I guessed very early in the book what was happening with Aidan the twin brother - think 2001: Space Odyssey with cybernetics.
Thought the ending was very realistic. ( )