The world is split in two...and either side could be fatal for her. In a society of extreme haves and have nots, Tenly Hawkins is firmly the latter. Born into the Cobalts, the lowest rung of society, she's done everything possible to escape her fate. She's obeyed all the rules...earned her way out of squalor. So, when she finally manages to secure a position in the Premier Workforce, she's sure all her hard work is about to pay off. But as it turns out, life among the elite Scarlets isn't as rosy as it appears from the outside.

Every year, a lottery is held for the hard-working people of Lutum. The prize? Eternal life. And everyone wants it. Well, everyone except for 17-year-old Silverstasia Blackwood. She doesn't think it's fair that the rich get to live luxurious lives while the people of Lutum are enslaved, forced to work hard every day to support the immortals.

There will come a day when love will mark you as a traitor. In a society where emotions are nothing and function is everything, Avlyn Lark is just trying to blend in. She's lucky to be alive, unlike her twin brother Ben who died when they were four. And she's lucky to have been taken from her biological parents and assigned to a Level Two family. But mastering her emotions? That's a problem, especially when a rebel bomb blows up a building right in front of her. Then on Configuration Day, Avlyn's official transition to adulthood, she starts seeing strange visions.

The loss of bees was heralded as the sixth wave of extinction. Economies crashed. Ecosystems collapsed. Wars were waged as countless starved. Luckily, humans were able to alter bees’ genetic code to deal with the hazards of pesticides and disease.

In a new world isolated by a rising, toxic sea, a single bridge connects Askala to the Outlands. Those who remain will need to pass a "proving" to determine if they have the intelligence and heart to champion the future of their broken Earth. Those who succeed will become Bound, the ones chosen to breed. Those who fail, are Unbound. Free of responsibility, but robbed of their ability to bear children.