GET THIS BOOK.

I loved it! I actually read it when I was nine or ten,but forgot the name,and most of the plot and characters. Byt I remembered the 'which', and the watchdog, and the cookies that were words. And I remembered the eccentric woman who keeps all the sounds you make locked up in a store room.
READ IT. It''s hilarious, it opened me up to a large vocabulary. And there's a word fight! And the lady who comes up with those stupid maxims,like "Silence is golden." It isn't! It's more like brass! and silence is annoying in school! You need to break the rules for fun [/tangent]
Get the book.
Love the book.