This list of hints for this clue is compiled from hundreds of Quester hints. This list is compiled by the MODs based on all the clues given by Questers. We have deleted extraneous posts so that you can easily discern the most basic hints for this clue!
Many times, if you're not inputting passwords or going to another site - you're probably staying within the hpquest website.

www.hpfantrips.com/hpquest/_____.html
You'll find an answer and be substituting it in this main web url address.
Don't forget your mission...what are you supposed to do here?
Answer that and you'll know what to do.

Look at the book, what detail is on the pages?
Try these words in the link.

Watch your spelling!

It is two words typed one after another.

No caps, no spaces, no symbols or numbers.

You need to return that book you found...do you perhaps know where to return it to?

Everything needed really is in the picture!