“R — r — riddikulus! “ squeaked Neville.

There was a noise like a whip crack. Snape stumbled; he was wearing a long, lace-trimmed dress and a towering hat topped with a moth-eaten vulture, and he was swinging a huge crimson handbag.

There was a roar of laughter; the Boggart paused, confused, and Professor Lupin shouted, “Parvati! Forward!”

Parvati walked forward, her face set. Snape rounded on her. There was another crack, and where he had stood was a bloodstained, bandaged mummy; its sightless face was turned to Parvati and it began to walk toward her very slowly, dragging its feet, its stiff arms rising —

“Riddikulus!” cried Parvati.

A bandage unraveled at the mummy’s feet; it became entangled, fell face forward, and its head rolled off.

“Seamus!” roared Professor Lupin.

Seamus darted past Parvati.

Crack ! Where the mummy had been was a woman with floorlength black hair and a skeletal, green-tinged face — a banshee. She opened her mouth wide and an unearthly sound filled the room, a long, wailing shriek that made the hair on Harry’s head stand on end — “Riddikulus!” shouted Seamus.

The banshee made a rasping noise and clutched her throat; her voice was gone.

Crack ! The banshee turned into a rat, which chased its tail in a circle, then — crack !— became a rattlesnake, which slithered and writhed before — crack ! — becoming a single, bloody eyeball.

“It’s confused!” shouted Lupin. “We’re getting there! Dean!”

Dean hurried forward.

Crack ! The eyeball became a severed hand, which flipped over and began to creep along the floor like a crab.

“Riddikulus!” yelled Dean.

There was a snap, and the hand was trapped in a mousetrap.

“Excellent! Ron, you next!”

Ron leapt forward.

Crack !

Quite a few people screamed. A giant spider, six feet tall and covered in hair, was advancing on Ron, clicking its pincers menacingly. For a moment, Harry thought Ron had frozen. Then —

“Riddikulus!” bellowed Ron, and the spider’s legs vanished; it rolled over and over; Lavender Brown squealed and ran out of its way and it came to a halt at Harry’s feet. He raised his wand, ready, but —

“Here!” shouted Professor Lupin suddenly, hurrying forward. Crack !

The legless spider had vanished. For a second, everyone looked wildly around to see where it was. Then they saw a silvery-white orb hanging in the air in front of Lupin, who said, “Riddikulus!” almost lazily.

Crack !

“Forward, Neville, and finish him off!” said Lupin as the Boggart landed on the floor as a cockroach. Crack ! Snape was back. This time Neville charged forward looking determined.

“Riddikulus!” he shouted, and they had a split second’s view of Snape in his lacy dress before Neville let out a great “Ha!” of laughter, and the Boggart exploded, burst into a thousand tiny wisps of smoke, and was gone.

“Excellent!” cried Professor Lupin as the class broke into applause. “Excellent, Neville. Well done, everyone…Let me see…five points to Gryffindor for every person to tackle the Boggart — ten for Neville because he did it twice…and five each to Hermione and Harry.”

“But I didn’t do anything,” said Harry.

“You and Hermione answered my questions correctly at the start of the class, Harry,” Lupin said lightly. “Very well, everyone, an excellent lesson. Homework, kindly read the chapter on Boggarts and summarize it for me…to be handed in on Monday. That will be all.”

Talking excitedly, the class left the staffroom. Harry, however, wasn’t feeling cheerful. Professor Lupin had deliberately stopped him from tackling the Boggart. Why? Was it because he’d seen Harry collapse on the train, and thought he wasn’t up to much? Had he thought Harry would pass out again?

But no one else seemed to have noticed anything.

“Did you see me take that banshee?” shouted Seamus.

“And the hand!” said Dean, waving his own around.

“And Snape in that hat!”

“And my mummy!”

“I wonder why Professor Lupin’s frightened of crystal balls?” said Lavender thoughtfully.

“That was the best Defense Against the Dark Arts lesson we’ve ever had, wasn’t it?” said Ron excitedly as they made their way back to the classroom to get their bags.

“He seems like a very good teacher,” said Hermione approvingly. “But I wish I could have had a turn with the Boggart —”

“What would it have been for you?” said Ron, sniggering. “A piece of homework that only got nine out of ten?”