Yellow Brick Road (слэш)

YOU RETURNED. He blurted as Harry peered through the opening in his tree. I DID NOT THINK YOU WOULD.
Harry grinned, “I’m full of surprises. And also elements. I got them all. So. You ready for this?” he asked as he rolled his sleeves up.
Vaatu swelled up to his full height and flicked his tendrils, ARE YOU READY, HARRY, TO HELP ME REDRESS THE BALANCE? he asked pointedly.
The Gryffindor nodded. “Yep. Let’s get you out of that tree?”
Famous last words.
When making deals with the Fae, with the Spirits, and with the Gods, be careful what you say. Words have power, and your word is your bond. Harry learns this the hard way when he finds himself in a strange world, in the middle of a war, with a powerful spirit latched onto his soul. First he must fix the balance, find his Spiritual Brother, and only once he'd saved the world would Vaatu help him find a way to save his own. So. Y'know. No pressure or anything.