Only one new one today ... umm, so far?

Mrs. Arabella Figg, Harry's neighbor on Privet Drive, is the woman with whom the Dursley's leave Harry if they are going someplace nice or fun.  Harry doesn't know that she is a Squib, a magical person who cannot do magic (not a muggle!) and that she's working for Dumbledore, to keep a lookout for Harry's welfare.  After Harry and his cousin Dudley are attacked by Dementors, he uses a spell to make them go away, and Mrs. Figg is a witness.  Good thing, because Harry is brought up on charges for "underage wizardry," and she is called as a witness for the defense.   Here, she is describing the Dementors and the feeling they created ... "as if all the joy had gone from the world."