Returning (Earth's Only Hope #3)

Earth is dying, but I hold the key to its survival. The people of Earth thought we wouldn’t survive. Why else would they only send their criminals with a ship full of aliens? But we proved them wrong. All we have to do is cross the galaxy and return home before Earth freezes to death in less than three months. Easy, right?
The unknowns of the universe, like meteor showers, wormholes, and space pirates, are nothing compared to what we face on our own ship. With our own people. Our salvation has never been so close…yet so far away.