Flames of the Heart (A Leo Valdez Love Story)

Tana Vestigaal is a demigod.
She is unclaimed, with no clue as to her godly parent is. Shuffled through Foster care since she was born, she's taught herself not to get attached to anyone because they'll end up leaving you anyway. She hides her true emotions behind a smile when she would rather collapse and end it then and there.
Leo Valdez is a Hero.
Surviving Giants, evil gods, and monsters more terrible than you could imagine, all he wants to do is live a normal demigod life. That plan flies out the window when he runs into his old Foster sister, Tana.
Will the resulting spark build a life of happiness or end their short lives with more pain than they had to start with?

Excerpt:
"Choose, Fire Girl." Khione laughed. "You must either kill Leo Valdez or Joshua Vestigaal."
"Or I shall." Chyanne conjured a knife of ice. "And I would so love to."
I looked at my brother, my protector, the only person staying with me through these years. My only family in this world.
Then I looked at Leo, my best friend, the only other person besides Josh who knows exactly who I am. The one who stole my heart.
And I made my choice.
"I'm sorry." I whispered as I raised my knife and stabbed...