Choose your own Harry Potter Fanfic

"Snape?" I said, instantly realizing that he was also my Professor. I couldn't believe they'd not sent him away. "What on earth are you doing here?" I asked in bewilderment. He turned and glared at me.

"I'm here to mention to you that you have a change in your summer homework from me. I've brought you the assignment and the supplies you will need." He reached into the pocket of his robe and pulled something out, which he lightly tapped his wand to. Instantly he made the items into their normal size and he had a roll of parchment, one large book and a small cauldron with many different ingredients in it.

"You will need to brew a potion for me to have ready for the start of the school year. I expect you to fail it spectacularly." My Uncle and Aunt started talking instantly.

"What do you think you're doing here?" Vernon said, his face beet red.

"We'll have none of that!" Aunt Petunia said, glaring at the cauldron that was sitting on her living room floor.

"I see," Snape said, glaring at both of them, landing on Vernon last. "You think I shall simply fail him without giving him a chance do you? Perhaps I should..."