The sky outside the window was changing rapidly from deep, velvety blue to cold, steely gray and then, slowly, to pink shot with gold.

So after E, it’s A for ‘Acceptable,’ and that’s the last pass grade, isn’t it?” “Yep,” said Fred, dunking an entire roll in his soup, transferring it to his mouth, and swallowing it whole. “Then you get P for ‘Poor’ ” — Ron raised both his arms in mock celebration — “and D for ‘Dreadful.’ ” “And then T,” George reminded him. “T?” asked Hermione, looking appalled. “Even lower than a D? What on earth does that stand for?” “ ‘Troll,’ ” said George promptly.

For in dreams we enter a world that is entirely our own. Let them swim in the deepest ocean or glide over the highest cloud.

My readers have to work with me to create the experience. They have to bring their imaginations to the story. No one sees a book in the same way, no one sees the characters the same way. As a reader you imagine them in your own mind. So, together, as author and reader, we have both created the story.

NO!” The scream was the more terrible because he had never expected or dreamed that Professor McGonagall could make such a sound.

I'm not a natural joiner.

Children being children, however, the grotesque Hopping Pot had taken hold of their imaginations. The solution was to jettison the pro-Muggle moral but keep the warty cauldron, so by the middle of the sixteenth century a different version of the tale was in wide circulation among wizarding families. In the revised story, the Hopping Pot protects an innocent wizard from his torch-bearing, pitchfork-toting neighbours by chasing them away from the wizard's cottage, catching them and swallowing them whole.