I pushed another strand of curly, wet, brown hair behind my ear and huffed in frustration. This day was not going as planned. First Ron tried to kiss me, then Draco attempted the same thing, though with less than noble intentions. Then my bag had finally broken, years of being overstuffed and forced onto our wild journeys not doing any good to it. Two of my books now had a damaged cover and one had a bent page. After that, things just went down hill, I even had to sit alone at dinner due to the fact I was snapping at everyone.

Now here I was, my robe clinging to my wet body as I sneaked through the castle halls, the moon my only light. As was usual, I had gone swimming in the lake again. In our fourth year, during the triwizard tournament when I was at the bottom of the lake, the mer-people had been observing us. One, who was overly interested in me, had accidentally bitten me, injecting it's venom.

I had to swim everyday now or my skin would become dry and I would become sick and slowly suffocate to death. You see, when I was injected, my body had begun to change and adapt to that of a mer-person. It worked like vampire venom, if they didn't kill you, you changed to the creature that bit you. Luckily, with work from the Headmaster, I held the form of a human while my mind, tendencies, and needs changed to that of a mer-person. If I wanted, and what I had to do on occasion, I could drop the human disguise and be my true form, a mer-person.

I shook myself from my thoughts as I nearly ran into a wall, now was not the time for this. With a last glance down the halls, I moved forward once more.

-(^.^)-

A/N: Ok, so how was this? This is only the prologue, but I hope this story is good so far. Tell me what you think, I want this story to much better than the last and I want it to actually make sense. So if you see anything confusing, just tell me and I'll answer.

DISCLAIMER: I DO NOT OWN HARRY POTTER OR IT'S CHARACTERS.