Written for bring me the sun's the dabble in a drabble competition on HPFC forum with the prompt 'words designed to kill'.
Maybe this time it would happen.
"Concutiosempra!" No...the figure on the floor showed no sign of injury.
"Lacersempra! Inermisempra! Ignitusempra!
I have tried everything possible over the last few days, but still the spell is not complete. I can feel the words in the back of my brain, if only I could get...them...out. Then they'd see what they were dealing with. Then they'd fear me as they have feared no other. That buffoon Potter would learn a lesson, and Lily would see what an arse he was.
What a world that would be. Alas, I don't think it will happen. My genius seems to have exhausted itself lately. Why, Pettigrew didn't even flinch when I tried out that last attempt. Even so, it's best to wipe his memory and send him off to bed now. The night has grown old and suspicion may arise if he is seen in this vicinity once again. What a useful creature he is. My own personal guinea pig.
I walked over to the boy slumped in the chair and untied him from it. I felt a pang of what might have been guilt at kidnapping him whenever I wanted to try out a new potion or spell. But I needed someone, and it might as well be a friend of Potter's. Anyway, Pettigrew was so easy to capture it would almost be a crime not to. All it took was a rich éclair, easily obtainable from the kitchens.
Letting the last few ropes slide away like snakes and disappear, I had an idea. It was nothing more than an idea, just a tiny possibility of something I might not have tried out yet. The wording that had eluded me. Trying not to get too excited, I slowly backed away and steadied my wand. It would only take a moment to make sure.
"Sectumsempra!" rang out my cry, echoing through the dungeon. A glance at the unconscious boy told me I had been triumphant. Blood seeped from under those dirty robes of his, blood that mesmerized me. After a few moments of this, I panicked. I'd never expected the results to be this strong. Pettigrew was dying as I watched him, those dazed eyes reflecting a future that was never to be. Hurriedly, I cast a few healing charms I'd memorised for an occasion just like this and watched the blood travel back into his body and his wound heal up. That was a relief.
After the first shock of realization, I began to smile. This was the most powerful thing I'd done yet, this was no hex to cause laughter, this was something designed to kill. I must keep it to myself, make sure it doesn't fall into the wrong hands. Like Potter's. Now, I knew I could defeat him.
Not bad for a Half-Blood Prince.
It's a little odd, I know, but tell me what you think! Review below please.