"'IT WASN'T A NIGHTMARE!' Ron yelled. 'PROFESSOR, I WOKE UP, AND SIRIUS BLACK WAS STANDING OVER ME, HOLDING A KNIFE!'
Professor McGonagall stared at him.
'Don't be ridiculous, Weasley, how could he possibly have got through the portrait hole?'
'Ask him!' said Ron, pointing a shaking finger at the back of Sir Cadogan's picture." POA, Chapter 13. #wwbookclub