Ron panted as they climbed their seventh long staircase and emerged on an unfamiliar landing, where there was nothing but a large painting of a bare stretch of grass hanging on the stone wall......
Harry was watching the painting. A fat, dapple-gray pony had just ampled onto the grass and was grazing nonchalantly. Harry was used to the subjects of Hogwarts paintings moving around and leaving their frames to visit one another, but he always enjoyed watching it.A moment later, a short, squat knight in a suit of armor clanked into the picture after his pony. By the look of the grass stains on his metal knees, he had just fallen off.
"Aha!" he yelled, seeing Harry, Ron, and Hermione. "What villians are these, that trespass upon my private lands? Come to scorn at my fall, perchance? Draw, you knaves, you dogs!"
They watched in astonishment as the little knight tugged his sword out of its scabbard and began brandishing it violently, hopping up and down in rage. But the sword was to long for him; a particularly wild swing made him overbalance, and he landed facedown in the grass.
"Are you alright?" said Harry, moving closer to the picture.
"Get back, you scurvy braggart! Back, you rogue!"
The knight seized his sword again and used it to push himself back up, but the blade sank deeply into the grass and, though he pulled with all his might, he couldn't get it out again. Finally, he had to flop back down onto the grass and push up his visor to mop his sweating face.
"Listen," said Harry, taking advantage of the knight's exhaustion, "we are looking for the North Tower. You don't know the way, do you?"
"A quest!" The knight's rage seemed to vanish instantly. He clanked to his feet and shouted, "Come follow me, dear friends, and we shall find our goal, or else shall perish bravely in the charge!"
He gave the sword another fruitless tug, tried and failed to mount the fat pony, gave up and cried, "On foot then, good sirs and gentle lady! On! On!"
And he ran, clanking loudly, into the left side of the frame and out of sight.
They hurried after him along the corridor, following the sound of his armor. Every now and then they spotted him running through a picture ahead.
"Be of stout heart, the worst is yet to come!" yelled the knight, and they saw him reappear in front of an alarmed group of women in crinolines, whose picture hung on the wall of a narrow spiral staircase.
Puffing loudly, Harry, Ron, and Hermione climbed the tightly spiraling steps, getting dizzier, and dizzier until at last they heard the murmur of voices above them and knew they had reached the classroom.
"Farewell!" cried the knight, popping his head into a painting of some sinister-looking monks. " Farewell, my comrades-in-arms! If ever you have need of noble heart and steely sinew, call upon Sir Cadogan!"
"Yeah, we'll call you," muttered Ron as the knight disappeared,"if we ever need someone mental."
Can I just mention how much I want a Sir Cadogan in my pictures?!?!