Tainted, contaminated, the Earth struggles to keep on. The same goes for Ulysse and Ava. Will they find their second wind?

Sixteen-year-old Ulysses lives with everyone else beneath the protective dome of the Center. He's never set foot outside, where the Beast reigns. Outside is hostile, contaminated. Seriously asthmatic children of fragile heath are overseen by doctors.
Ava lives in Paris. She and her best friend Nour are environmental activists. One day, she discovers a terrible secret. The time of impact has come.
Ava and Ulysse are part of one big story: a story of change.