Passion of the Snake

AU. What if everything you've ever known, was nothing like it seemed? - Harry Potter and Severus Snape, soul mates decided by fate, are chosen to defeat the most powerful dark wizard of their time. But what's going to happen to the fate of the Wizarding World, if Harry grew up in a world where he believed he was the only Chosen One? *SNARRY. SLASH. YOAI. HP/SS.*