Will and friends read and react to the Ranger's Apprentice series (but not book 12). Takes place shortly after Lost Stories. Disclaimer - all I own is the reactions. Not the characters, not the books, not nothin' but the unbolded words.
After Fred's death, George couldn't cast a Patronus. After Fred came back, he didn't need to.
The old chessmaster's mind is not at peace.
When Ron broke his brother's toy broomstick, he was three.