Humans don't have fresh air or free water. That's just the way life is in the 24th century.
Then Virginia discovers a secret navigation chart to her mother's last known location. She and her cousin Gordy plan a rescue mission and fly to the legendary planet, a wildlife refuge, Green Tara.
There they find an oxygen-rich world teeming with songbirds and the secret of her mom's thwarted science expedition. Green Tara holds the source of new life for human colonies.
Virginia confronts enormous insects, gruesome smells, and unpredictable space pirates. Will she find the courage and endurance to fulfill her family's promise and reseed an ocean that suffered environmental ruin generations ago?
On the icy Blue Grannus moon, where space pirates tow the Bosque teenagers to safety, Gordy hears the story of how his parents met and learns that his name, Gordon, means "guardian," a fitting name for an ecologist.
The pirates recruit him and his cousin Virginia to trek to the heart of the ice caves to trade with the most famous mushroom cultivator of the galaxy. After all, space travelers need all sorts of mushrooms for terraforming, for eating, for medicinal use, and for ecosystem restoration.
Meanwhile, heavy drilling at the mines poisons the colony's drinking water and sets off an earthquake, cracking the ice. Will Gordy be able to lead the villagers out of the collapsing cave? Will he and Virginia be able to stop the destructive mining activity and apply mushroom technology to detox the water?