Book 2 in the Steampunk Children's Series.
The war has been won, the Jovians are free of the tyranny of Phobos, but the planet now lies in ruins. The Sinu and the Fiegan Firelords are threatening a civil war and the people of Jupiter are going hungry. First Petros has failed as their protector and General Ardor wants him replaced.
To make matters worse, the Castillos face a new challenge.
Ian is sick and no doctor on Earth can help him.
When Ian and Callie return to Jupiter to find a cure, they discover that the secret may be found in the Book of Ganymede. But now, the book is missing.
Left with no answers they are forced to face a painful truth.
Ian is dying.