Neville was having trouble, too. His face was screwed up in concentration, but only feeble wisps of silver smoke issued from his wand tip.
“You’ve got to think of something happy,” Harry reminded him.
“I’m trying,” said Neville miserably, who was trying so hard his round face was actually shining with sweat.
“Harry, I think I’m doing it!” yelled Seamus, who had been brought along to his first ever D.A. meeting by Dean. “Look—ah—it’s gone… but it was definitely something hairy, Harry!”
Hermione’s Patronus, a shining silver otter, was gambolling around her.
“They are sort of nice, aren’t they?” she said, looking at it fondly.
The door of the Room of Requirement opened, and closed. Harry looked round to see who had entered, but there did not seem to be anybody there. It was a few moments before he realised that the people close to the door had fallen silent. Next thing he knew, something was tugging at his robes somewhere near the knee. He looked down and saw, to his very great astonishment, Dobby the house-elf peering up at him from beneath his usual eight woolly hats.
“Hi, Dobby!” he said. “What are you—What’s wrong?”
The elf’s eyes were wide with terror and he was shaking. The members of the D.A. closest to Harry had fallen silent; everybody in the room was watching Dobby. The few Patronuses people had managed to conjure faded away into silver mist, leaving the room looking much darker than before.
“Harry Potter, sir…” squeaked the elf, trembling from head to foot, “Harry Potter, sir… Dobby has come to warn you… but the house-elves have been warned not to tell…”
He ran head-first at the wall. Harry, who had some experience of Dobby’s habits of self-punishment, made to seize him, but Dobby merely bounced off the stone, cushioned by his eight hats. Hermione and a few of the other girls let out squeaks of fear and sympathy.
“What’s happened, Dobby?” Harry asked, grabbing the elf’s tiny arm and holding him away from anything with which he might seek to hurt himself.
“Harry Potter… she… she…”
Dobby hit himself hard on the nose with his free fist. Harry seized that, too.
“Who’s ‘she’, Dobby?”
But he thought he knew; surely only one “she” could induce such fear in Dobby? The elf looked up at him, slightly cross-eyed, and mouthed wordlessly.
“Umbridge?” asked Harry, horrified.
Dobby nodded, then tried to bang his head on Harry’s knees. Harry held him at arm’s length.
“What about her? Dobby—she hasn’t found out about this—about us—about the D.A.?”
He read the answer in the elf’s stricken face. His hands held fast by Harry, the elf tried to kick himself and fell to the floor.
“Is she coming?” Harry asked quietly.
Dobby let out a howl, and began beating his bare feet hard on the floor.