Choose your own Harry Potter Fanfic

I followed Malfoy carefully, making sure he didn't notice my presence. The halls were dark at this time of night, and I had special permission to be out researching. Draco, however, could never get such permission unless it was something extremely important or... he didn't have any. The second seemed more likely. Perhaps I could get him in trouble. I was about to ask him what he was doing at this time of night but my voice was lost in my throat at the last second. Voldemort was standing in the halls. How did he get in? What was his purpose? If I moved now, I would surely be caught. I hid behind a pillar, listening to their conversation.
"Did you poison Dumbledore's tea?"
"I didn't get a chance to. That bastard had too many people around him, they would have noticed."
"Did I give you permission to fail, boy?"
"No... no Lord Voldemort." Draco said the last part quietly, as if afraid someone would hear.
"I am giving you one last chance. Tomorrow, if the headmaster is not dead, I will see to it that you are." With that, Voldemort vanished. Malfoy turned and began walking my way. I didn't have much time to think.