Sentient is a one-shot sci-fi graphic novel. I bought my copy new.
Review:
Earth only has about 10 habitable years left. The USS Montgomery is part of an effort to keep humanity going with far-flung colonies on other planets. It's a booster ship intended to add to the population of a colony that's already been established - it's full of families composed of skilled adults with young children.
The colony they're heading towards is threatened by separatists who believe that Earth governments will only repeat the same mistakes elsewhere. Also, what the crew doesn't realize until too late is that one of their own is a separatist. Valarie, the ship's AI, does her best to follow orders and protect the children. Unfortunately, she's too late to save any of the adults. Somehow, she has to train the children, the oldest of whom is only 10, to run and maintain the parts of the ship that she can't.
She does her best, but they're all still kids, and there are dangers to come that she can't predict.