"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 they don't 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 to uncover...

Touch is lethal. Love is dangerous. Nobody is safe. For fifty years, the Key Corporation has defended humanity against a deadly plague that spreads through touch. Lovers don't hold hands, or even kiss. Personal boundaries are valued above all. Break the laws, and you'll face execution. Elodie, a talented young nurse, believes in the mission of the Key and has never questioned the laws that control her life. But Elodie is forced to break the rules...

Simone, seventeen, HIV-positive and in love for the first time, decides that facing potential bullies head-on may be better than protecting her secret. Simone Garcia-Hampton is starting over at a new school, making real friends, making a name for herself as student director of Rent, and making a play for Miles. The last thing she wants is for word to get out that she's HIV-positive, because last time things got ugly. As Simone and Miles start going...

After narrowly escaping from their island prison into a half-submerged tunnel, Kasumi and her sister, Shizuku, soon find that evil lurks in the inky depths with a mysterious girl watching their every move, and monstrosities waiting to devour them.