Harry had no front teeth anymore. It meant he had a snake like sssss when he spoke. Apparently someone from the past in Green Group spoke that way but they had all of their teeth still. Harry's teeth would grow back soon though, wizards could do strange things like that.
Frognal helped Harry by being with him during his pain. Frognal was not useful in easing the pain, but he was still there for Harry. He thought about how Hermanonie would be with them too, if she hadn't died. Kneecap was there too, but was rather forgettable. Both Harry and Frognal had limited memory and Kneecap was not stored there yet.
A spooky breeze went through the castle. It had an ominous vibe. The evil thermometer in the dining hall moved towards "a little bit evil" on its gauge. Nobody ever checked the evil thermometer.
Everyone was asleep but evil never sleeps. The evil force moved through the castle and disappeared into a tower somewhere. Nobody knew this was happening because nobody ever checked the evil thermometer. The night continued and the darkness was quiet.