PotterMore: Early Access Answers Day 3

Edit: Today’s registration is now closed. Please come back tomorrow for another chance at gaining early access.

Want early access to PotterMore.com? Each day I will post the solution to finding The Magical Quill.

Day 3 clue:
In the Gryffindor versus Slytherin Quidditch match, in Harry’s third year, how many points is Gryffindor leading by before Harry catches the Golden Snitch?
Multiply this number by 35.

[spoiler]60 points x 35 = 2100

Go to http://quill.pottermore.com/2100 and you will be redirected to a children’s book store. Find the ad in the upper right hand corner and mouse over the ad and the magic quill will appear. It says you must levitate it. Move the mouse continuously under the feather until it reaches the top.[/spoiler]