Most people don't know it's there. The caldera is so large that it can only be seen from a plane or satellite. It just could be overdue for an eruption, which would change the landscape and climate of our planet.For Alex, being left alone for the weekend means having the freedom to play computer games and hang out with his friends without hassle from his mother. Then the Yellowstone supervolcano erupts, plunging his hometown into a nightmare of darkness, ash, and violence. Alex begins a harrowing trek to search for his family and finds help in Darla, a travel partner he meets along the way. Together they must find the strength and skills to survive and outlast an epic disaster.

    IF YOU GIVE UP EVERYTHING. For Kitty Doe, it seems like an easy choice. She can either spend her life as a III in misery, looked down upon by the higher ranks and forced to leave the people she loves, or she can become a VII and join the most powerful family in the country. If she says yes, Kitty will be Masked—surgically transformed into Lila Hart, the Prime Minister's niece, who died under mysterious circumstances. As a member of the Hart family, she will be famous. She will be adored. And for the first time, she will matter. There's only one catch. She must also stop the rebellion that Lila secretly fostered, the same one that got her killed and one Kitty believes in. Faced with threats, conspiracies and a life that's not her own, she must decide which path to choose—and learn how to become more than a pawn in a twisted game she's only beginning to understand.Previously titled Masked.