An extraordinary lightness seemed to spread through his whole body and the next second, in a rush of wings, they were flying upward through the pipe. Harry could hear Lockhart dangling below him, saying “Amazing! Amazing! This is just like magic!”
“The adventure ends here, boys!” he said. “I shall take a bit of this skin back up to the school, tell them I was too late to save the girl, and that you two tragically lost your minds at the sight of her mangled body — say goodbye to your memories!”
He couldn’t see what else they could do. They had hit dead ends everywhere. Riddle had caught the wrong person, the Heir of Slytherin had got off, and no one could tell whether it was the same person, or a different one, who had opened the Chamber this time. There was nobody else to ask.
You will find that I will only truly have left this school when none here are loyal to me. You will also find that help will always be given at Hogwarts to those who ask for it.