Battle of the Heart

What happens when staying together puts all of humanity in a battle between the Greek and Egyptian gods?

You fight, or at least I did.

Tristan and I always had to fight to be together, I just never thought we'd start a war in the process. We'd weighed the options, and decided our fates, and in the end, we were allowed to marry, but a child of a Greek demigod and an Egyptian god wasn't part of the deal.

So, it all comes down to one epic conclusion.

What do you do when death couldn't part you last time, but the final battle could end it all for good?