“Harry, you know that Professor Snape had no choice but to pretend not to take you seriously in front of Dolores Umbridge,” said Dumbledore steadily, “but as I have explained, he informed the Order as soon as possible about what you had said. It was he who deduced where you had gone when you did not return from the forest. It was he too who gave Professor Umbridge fake Veritaserum when she was attempting to force you to tell of Sirius’s whereabouts . . .”
