The Covenant series

"Everything Alex has feared for the past few months has come true: She has lost her free will to the Awakening and has been placed on the Elixir, which makes her docile and compliant. But . . . Aiden St. Delphi is willing to wage war on the gods--and Alex herself--to bring her back. The gods have killed thousands and leveled cities in their quest to end the all-powerful bond between the Apollyons. They would do anything to stop Seth from becoming the God Killer. But . . . Seth has become ruthless in his hunger for power. Alex and Aidan must venture their way past the guards of the Underworld and search for one soul among countless millions. As if that wasn't already hard enough, Alex has been desperately trying to keep Seth at bay from becoming the God Killer, but what she never realized is that she could become the God Killer herself"--Provided by publisher.

In the war against the gods, Alex and Aiden are fighting for their happily-ever-after, but victory requires trusting a deadly foe as they travel to the Underworld in preparation for the final battle against Ares.

Alex travels to the Underworld in search of the one person who might have information that could prevent the destruction planned by the gods.

"It's a beautiful day for a war. As the mortal world slowly slips into chaos of the godly kind, Alexandria Andros must overcome a stunning defeat that has left her shaken and in doubt of their ability to end this war once and for all. And with all the obstacles between Alex and her happily-ever-after with the swoonworthy Aiden St. Delphi, they must now trust a deadly foe as they travel deep into the Underworld to release one of the most dangerous gods of all time. In the stunning, action-packed climax to the bestselling Covenant Series, Alex must face a terrible choice: the destruction of everything and everyone she holds dear... or the end of herself."-- Page [4] of cover.