A classic tale of fantasy, adventure, and bravery in a beautiful anniversary edition--perfect for fans and new readers alike! When his beloved caretaker Mrs. Phillips tells him she's leaving, William is devastated. Not even her farewell gift of a model Medieval castle helps him feel better--though he has to admit it's fascinating. From the working drawbridge and portcullis to the fully-furnished rooms, it's perfect in every detail. It almost seems magical. And when William looks at the silver knight, the tiny figure comes to life in his hand--and tells him a tale of a wicked sorcerer, a vicious dragon, and a kingdom in need of a hero. Hoping the castle's magic will help him find a way to make his friend stay, William embarks on a daring quest with Sir Simon, the Silver Knight--but he will have to face his own doubts and regrets if he's going to succeed. A reader favorite for 35 years, this redesigned anniversary edition includes an author's note from Elizabeth Winthrop, reflecting on the novel and its legacy. William's story continues in The Battle for the Castle, available as a redesigned companion edition.An IRA-CBC Children's ChoiceA California Young Reader Medal WinnerA Dorothy Canfield Fisher Children's Book Award WinnerNominated for 23 State Book Awards