Care To Make A Wager, Granger?

"Alright, I accept your wager, Malfoy. Flying lessons for three months then if I make the quaffle shot you give me the book. If I don't make it I will clean your cauldron for the remainder of the year." She was bound and determined to regain the book stolen from right under her nose by a certain blonde prig. The price? A wager.