Grace lives on a space station with one of her moms, while the other is gone for long stretches of time working on a cargo ship. Grace longs to travel, to visit planets, to see trees and lakes. Finally she gets the chance to go with her space fairing mom on a trip to the inhabited moon Titan, but her mom barely has time for her, constantly delaying her requests for games, attention, or adventure. So Grace sets out on her own for the day on Titan with a group of kids she met the day before. This gentle family drama is resolved when engineering mom swoops in to remind Grace and cargo ship mom that working together and being honest is the best way to move forward. I loved the artwork; all of the characters had a cuddly quality and the space ship and station interiors were simple but very effect, especially with the lovely colors.