The Threads of Fate - War on the Gods, #4

Could the threads of fate be wrong-could there be another way to win this war on the gods?With Hades's, Poseidon's, and Zeus's strongest magical items in their possession, Andy and Zoey think they're prepared to defeat the tyrannical Greek gods-that is, until the truth about the immortals living inside their bodies is revealed. As it turns out, Andy and Zoey aren't reincarnations of Anteros and Calliope.
They're regular old mortals, and regular old mortals can't harness the full powers of the gods' objects, which is the only way to take down the pantheon. Thankfully, Asteria shows Andy and Zoey a future where they might emerge victorious in their clash with the gods. The issue? If they want a shot at saving the world, they'll need to reconnect with Anteros and Calliope... and allow the immortals to take control of their bodies forever.
With the help of their friends, a dying Titan, and a vengeful, scheming goddess, Andy and Zoey will have to decide whether they can make the ultimate sacrifice to liberate humanity. Gods. Monsters. Magic. War on the Gods is a completed series perfect for fans of Greek mythology and dark YA fantasy.