Final answer:
Kady Grant is aboard the spaceship named Hypatia for the majority of 'Illuminae.' The Hypatia is one of the ships in the fleeing fleet in this first installment of the Illuminae Files series.
Step-by-step explanation:
In the book Illuminae, Kady Grant is on the spaceship Hypatia for most of the story. The Illuminae novel is the first book in the Illuminae Files series and follows Kady as she and others flee from an enemy corporation after their planet is invaded.
Kady finds herself onboard the Hypatia, one of the escaping fleet's ships, where she uncovers secrets and faces numerous challenges while trying to survive and deal with the unfolding events.