I bet some fans have already written it themselves.
The second clue came out last night, this one being "In which chapter did Professor McGonagall cancel the Quidditch match between Hufflepuff and Gryffindor? Multiply this answer by 42." Talk about a crazed frenzy to look for the right chapter... and then it turns out the link to the American version didn't even work properly! It kept freezing and the screen wouldn't come up completely. We had to go to the German version of the site instead! It all worked in the end. If you want early access for Pottermore, better get out there and find that feather, mates!