¡°But they already know,¡± said Lupin. ¡°At least, the staff do.¡±
The book toppled off the bed with a loud clunk and shuffled rapidly across the room. Harry followed it stealthily. The book was hiding in the dark space under his desk. Praying that the Dursleys were still fast asleep, Harry got down on his hands and knees and reached toward it.