Skippyjon Jones, the Siamese cat that thinks he is a Chihuahua dog, has an adventure on Mars.

The Roversaurs--half spacecraft and half dinosaur--call on the expertise of their fellow dino-machines, the Diggersaurs--half construction truck and half dinosaur--to help them build a Martian base.

Bell has spent his whole life--all eleven years of it--on Mars. But he's still just a regular kid--he loves cats, any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't they have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell--a regular kid...