Harry was just helping himself to a baked potato when Professor Quirrell came sprinting into the hall, his turban askew and terror on his face. Everyone stared as he reached Professor Dumbledore's chair, slumped against the table, and gasped, "Troll -- in the dungeons -- thought you ought to know."
He then sank to the floor in a dead faint.

Harry Potter and the Philosopher's Stone - Chapter 10 : Halloween
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