"Madame Pomfrey!" Hermione yelled. "Quick, I can't find a pulse!"
The old nurse sprinted over to Harry, and started to do complicated wand movements, muttering under her breath.
There was a tense silence. Then, Harry drew a ragged breath, and closed his eyes: unconscious.
Just then, Professor Slughorn ran in. His tie was hanging round his neck, and his fat chest heaved up and down, as he gasped for breath, having run up from his office in the dungeons.
"Madame…Pomfrey…I've found…out… what…the potion is…it's…a mixture…of…the….memory loss…potion…and the…temperature…change potion." He tried to catch his breath.
"Oh dear... Professor Slughorn, that's a deadly mix! No one would be able to survive such a…" she stopped as she caught sight of Ginny, Ron, and Hermione's faces. "Oh….erm…But I'm sure he'll be fine soon children. Don't worry yourselves about it! You'll have your friend back in no time." She said cheerfully, but they all knew she was lying.
The three friends went back to sit with Harry for a while, but the sound of his ragged breath, and yelps in pain every now and again was too much for two of them. Ginny stayed with him, as Ron and Hermione left to send a letter to Mrs Weasley, promising to be back soon.