When twelve-year-old Lilly Chatterjee sees a strange green "root" blink across the Bangalore sky, everyone calls it debris. Lilly calls it a mystery. She climbs to the rooftop, catches a falling fragment, and discovers something impossible: a piece of glass that behaves like a living plant.

With her brother Arjun and her best friend Kareem, Lilly sneaks the sample into the school lab and uncovers a secret no textbook explains. The only way to learn more? Enter the school's CubeSat competition and send the fragment into orbit?without letting any adults know what they're really studying.

What begins as a after-school science project turns serious when the root reaches the space station and starts to grow. It slips into wiring, drinks power, and forces the crew?and Lilly?to decide what to do with a form of life that doesn't follow any rules they've ever learned.

Set between a lively Bangalore school and the silence of low Earth orbit, Lilly and the Sky-Root is a fast, STEM-driven adventure about curiosity, teamwork, and the courage to ask real questions?even when the adults aren't ready for the answers.

Perfect for readers who love science, mystery, and kids who save the day with their brains.