When the world ends, where will you be? It was a question Cora never thought she would have to answer. Thankfully, her uncle has been preparing for a moment like this for years. His bunker is loaded with gear and goods, and it's secure and well-protected. …the problem is—she’s not the only one who knows about it, and the others will do anything to gain access. In this groundbreaking new series from veteran author R.L. Kennedy, Cora and Mason must team up to battle the world’s most dangerous force: humanity itself.