The Evergreen Files: Banshee; Book One

Follow the crew of The Evergreen, a space cruiser and first line colony vessel. As Earth wilts on the vine from overpopulation and after the Luna Wars, people are beginning to become desperate for a way out. When first contact doesn't go so well, and is kept secret from the population, a second attempt it made once hostility has eased between the two races. But en-route to a bright new future, things don't go as planned. A strange creature that the Gryph race is recently familiar with begins to wreck havoc.