Yesterday and Tomorrow — Robin Buckallew

Cassandra Wilcox didn't believe in the devil. When Beelzebub showed up in her life, it seemed harmless enough to play along for a time. Then things started to happen, strange things that Cassie couldn't explain. What seemed like a harmless flirtation becomes a struggle to survive as Cassie chases a mysterious key that everyone wants, even though no one knows what it opens. With the clock running out, Cassie must rely on Nick, but can he be trusted? If she does find the key, where will it take her? What exactly is the fate that destiny has prepared for her?

Cassie must call out God for the epic battle that will determine the future of the universe. Nick informs her there is no assurance that good will win. Cassie must first figure out what is good...what is evil...and where, if anywhere, is God? Turning everything she ever thought on its head, Nick leads her to question even her own understanding of science. Once reality is pitted against desire, nothing in the world will ever be the same again.