Harry was telling his three friends about Sir Nicholas's deathday party that they were all invited to attend.

"A deathday party?" said Hermione keenly when Harry had changed and joined her, Johnny and Ron in the common room. "I bet there aren't many living people who can say they've been to one of those - it'll be fascinating!"

"Why would anyone want to celebrate the day they died?" said Ron, who was halfway through his Potions homework and grumpy. "Sounds dead depressing to me..."

"It's dead depressing because they're dead," Johnny said bluntly.

Rain was still lashing the windows, which were now inky black, but inside all looked bright and cheerful. The firelight glowed over the countless squashy armchairs where people sat reading, talking, doing homework or, in the case of Fred and George, trying to find out what would happen if you fed a Filibuster firework to a salamander. Fred had "rescued" the brilliant orange, fire-dwelling lizard from a Care of Magical Creatures class and it was now smouldering gently on a table surrounded by a knot of curious people.

Harry was at the point of telling Johnny, Ron and Hermione about Filch and the Kwikspell course when the salamander suddenly whizzed into the air, emitting loud sparks and bangs as it whirled wildly round the room. The sight of Percy bellowing himself hoarse at Fred and George, the spectacular display of tangerine stars showering from the salamander's mouth, and its escape into the fire, with accompanying explosions, drove both Filch and the Kwikspell envelope from Harry's mind.

The rest of the school was happily anticipating their Halloween feast; the Great Hall had been decorated with the usual live bats, Hagrid's vast pumpkins had been carved into lanterns large enough for three men to sit in, and there were rumors that Dumbledore had booked a troupe of dancing skeletons for the entertainment.

"A promise is a promise," Hermione reminded Harry bossily. "You said you'd go to the deathday party."

"I promised nothing!" Johnny said tiredly. "Yet I'm being forced!"

"You have to go because I'm going," Hermione would tell him.

So at seven o'clock, Harry, Johnny, Ron, and Hermione walked straight past the doorway to the packed Great Hall, which was glittering invitingly with gold plates and candles, and directed their steps instead toward the dungeons.

The passageway leading to Nearly Headless Nick's party had been lined with candles, too, though the effect was far from cheerful: These were long, thin, jet-black tapers, all burning bright blue, casting a dim, ghostly light even over their own living faces. The temperature dropped with every step they took. As Johnny shivered and drew his robes tightly around him, he heard what sounded like a thousand fingernails scraping an enormous blackboard.

"Jesus Christ I'm already depressed enough," Johnny muttered to himself.

"Is that supposed to be music?" Ron whispered. They turned a corner and saw Nearly Headless Nick standing at a doorway hung with black velvet drapes.

"My dear friends," he said mournfully. "Welcome, welcome... so pleased you could come..."

He swept off his plumed hat and bowed them inside.

It was an incredible sight. The dungeon was full of hundreds of pearly-white, translucent people, mostly drifting around a crowded dance floor, waltzing to the dreadful, quavering sound of thirty musical saws, played by an orchestra on a raised, black-draped platform. A chandelier overhead blazed midnight-blue with a thousand more black candles. Their breath rose in a mist before them; it was like stepping into a freezer.

"Shall we have a look around?" Harry suggested, wanting to warm up his feet.

"Careful not to walk through anyone," said Ron nervously, and they set off around the edge of the dance floor. They passed a group of gloomy nuns, a ragged man wearing chains, and the Fat Friar, a cheerful Hufflepuff ghost, who was talking to a knight with an arrow sticking out of his forehead. They wasn't surprised to see that the Bloody Baron, a gaunt, staring Slytherin ghost covered in silver bloodstains, was being given a wide berth by the other ghosts.

"Oh, no," said Hermione, stopping abruptly. "Turn back, turn back, I don't want to talk to Moaning Myrtle--"

"Who?" said Harry as they backtracked quickly.

"She haunts one of the toilets in the girls'bathroom on the first floor," said Hermione.

"She haunts a toilet?"

"Yes. It's been out-of-order all year because she keeps having tantrums and flooding the place. I never went in there anyway if I could avoid it; it's awful trying to have a pee with her wailing at you--"

"To much information, sweetheart," Johnny said with a grimace.

"Look, food!" said Ron.

On the other side of the dungeon was a long table, also covered in black velvet. They approached it eagerly but next moment had stopped in their tracks, horrified. The smell was quite disgusting. Large, rotten fish were laid on handsome silver platters; cakes, burned charcoal-black, were heaped on salvers; there was a great maggoty haggis, a slab of cheese covered in furry green mold and, in pride of place, an enormous gray cake in the shape of a tombstone, with tar-like icing forming the words,

SIR NICHOLAS DE MIMSY-PORPINGTON DIED 31ST OCTOBER, 1492

They watched, amazed, as a portly ghost approached the table, crouched low, and walked through it, his mouth held wide so that it passed through one of the stinking salmon.

"Can you taste it if you walk though it?" Harry asked him.

"Almost," said the ghost sadly, and he drifted away.

"I expect they've let it rot to give it a stronger flavor," said Hermione knowledgeably, pinching her nose and leaning closer to look at the putrid haggis.

"Can we move? I feel sick," said Ron.

They had barely turned around, however, when a little man swooped suddenly from under the table and came to a halt in midair before them.

"Hello, Peeves," said Johnny cautiously.

Unlike the ghosts around them, Peeves the Poltergeist was the very reverse of pale and transparent. He was wearing a bright orange party hat, a revolving bow tie, and a broad grin on his wide, wicked face.

"Nibbles?" he said sweetly, offering them a bowl of peanuts covered in fungus.

"No thanks," said Hermione.

"Heard you talking about poor Myrtle," said Peeves, his eyes dancing. " Rude you was about poor Myrtle." He took a deep breath and bellowed, "OY! MYRTLE!"

"Oh, no, Peeves, don't tell her what I said, she'll be really upset," Hermione whispered frantically. "I didn't mean it, I don't mind her - er, hello, Myrtle."

The squat ghost of a girl had glided over. She had the glummest face the boys had ever seen, half-hidden behind lank hair and thick, pearly spectacles.

"What?" she said sulkily.

"How are you, Myrtle?" said Hermione in a falsely bright voice. "It's nice to see you out of the toilet."

Myrtle sniffed.

"Miss Granger was just talking about you -" said Peeves slyly in Myrtle's ear. "Just saying--"

"Just saying - saying - how nice you look tonight," said Hermione, glaring at Peeves.

Myrtle eyed Hermione suspiciously.

"You're making fun of me," she said, silver tears welling rapidly in her small, see-through eyes.

"No - honestly - didn't I just say how nice Myrtle's looking?" said Hermione, nudging Harry and Johnny painfully in the ribs.

"Every time you nudge me, you owe me £2, you already owe me £48," Johnny groaned.

"Oh, yeah--"

"She did--"

"Don't lie to me," Myrtle gasped, tears now flooding down her face, while Peeves chuckled happily over her shoulder. "D'you think I don't know what people call me behind my back? Fat Myrtle! Ugly Myrtle! Miserable, moaning, moping Myrtle!"

"You've forgotten pimply," Johnny said rather annoyed. Peeves and the other boys found this tremendously funny as Myrtle burst into anguished sobs and fled from the dungeon. Peeves shot after her, pelting her with moldy peanuts, yelling, " Pimply! Pimply! "

"Oh, dear," said Hermione sadly.

"She looks like a female version of Harry," Johnny said.

"Shut it."

Nearly Headless Nick now drifted toward them through the crowd.

"Enjoying yourselves?"

"Oh, yes," they lied.

"Not a bad turnout," said Nearly Headless Nick proudly. "The Wailing Widow came all the way up from Kent... It's nearly time for my speech, I'd better go and warn the orchestra..."

The orchestra, however, stopped playing at that very moment. They, and everyone else in the dungeon, fell silent, looking around in excitement, as a hunting horn sounded.

"Oh, here we go," said Nearly Headless Nick bitterly.

Through the dungeon wall burst a dozen ghost horses, each ridden by a headless horseman. The assembly clapped wildly; Johnny started to clap, too, but stopped quickly at the sight of Nick's face.

The horses galloped into the middle of the dance floor and halted, rearing and plunging. At the front of the pack was a large ghost who held his bearded head under his arm, from which position he was blowing the horn. The ghost leapt down, lifted his head high in the air so he could see over the crowd (everyone laughed), and strode over to Nearly Headless Nick, squashing his head back onto his neck.

"Nick!" he roared. "How are you? Head still hanging in there?"

He gave a hearty guffaw and clapped Nearly Headless Nick on the shoulder.

"Welcome, Patrick," said Nick stiffly.

"Live uns!" said Sir Patrick, spotting Johnny, Harry, Ron, and Hermione and giving a huge, fake jump of astonishment, so that his head fell off again (the crowd howled with laughter).

"Very amusing," said Nearly Headless Nick darkly.

"Don't mind Nick!" shouted Sir Patrick's head from the floor. "Still upset we won't let him join the Hunt! But I mean to say - look at the fellow--"

"I think," said Harry hurriedly, at a meaningful look from Nick, "Nick's very - frightening and - er--"

"Ha!" yelled Sir Patrick's head. "Bet he asked you to say that!"

"If I could have everyone's attention, it's time for my speech!" said Nearly Headless Nick loudly, striding toward the podium and climbing into an icy blue spotlight.

"My late lamented lords, ladies, and gentlemen, it is my great sorrow..."

But nobody heard much more. Sir Patrick and the rest of the Headless Hunt had just started a game of Head Hockey and the crowd were turning to watch. Nearly Headless Nick tried vainly to recapture his audience, but gave up as Sir Patrick's head went sailing past him to loud cheers.

"I can't stand much more of this," Ron muttered, his teeth chattering, as the orchestra ground back into action and the ghosts swept back onto the dance floor.

"Let's go," Johnny agreed.

They backed toward the door, nodding and beaming at anyone who looked at them, and a minute later were hurrying back up the passageway full of black candles.

"Pudding might not be finished yet," said Ron hopefully, leading the way toward the steps to the entrance hall.

Harry stumbled to a halt, clutching at the stone wall, listening with all his might, looking around, squinting up and down the dimly lit passageway.

"Harry, what're you -?"

"It's that voice again - shut up a minute--"

"Listen!" said Harry urgently, and Johnny, Ron and Hermione froze, watching him.

"This way," Harry shouted, and he began to run, up the stairs, into the entrance hall. It was no good hoping to hear anything here, the babble of talk from the Halloween feast was echoing out of the Great Hall. Harry sprinted up the marble staircase to the first floor, Johnny, Ron and Hermione clattering behind him.

"Harry, what're we--"

"SHH!" Harry strained his ears.

"It's going to kill someone!" he shouted, and ignoring Johnny's, Ron's and Hermione's bewildered faces, he ran up the next flight of steps three at a time. Harry hurtled around the whole of the second floor, Johnny, Ron and Hermione panting behind him, not stopping until they turned a corner into the last, deserted passage.

"Harry, what was that all about?" said Johnny, wiping sweat off his face. "I couldn't hear anything..."

But Hermione gave a sudden gasp, pointing down the corridor.

"Look! "

Something was shining on the wall ahead. They approached slowly, squinting through the darkness. Foot-high words had been daubed on the wall between two windows, shimmering in the light cast by the flaming torches.

THE CHAMBER OF SECRETS HAS BEEN OPENED. ENEMIES OF THE HEIR, BEWARE

"What's that thing - hanging underneath?" said Ron, a slight quiver in his voice.

As they edged nearer, Johnny almost slipped - there was a large puddle of water on the floor; Ron and Hermione grabbed him, and they inched toward the message, eyes fixed on a dark shadow beneath it. All four of them realised what it was at once, and leapt backward with a splash.

Mrs. Norris, the caretaker's cat, was hanging by her tail from the torch bracket. She was stiff as a board, her eyes wide and staring.

For a few seconds, they didn't move. Then Ron said, "Let's get out of here."

"Shouldn't we try and help -" Harry began awkwardly.

"We don't want to be found here," Johnny agreed with Ron.

But it was too late. A rumble, as though of distant thunder, told them that the feast had just ended. From either end of the corridor where they stood came the sound of hundreds of feet climbing the stairs, and the loud, happy talk of well-fed people; next moment, students were crashing into the passage from both ends.

The chatter, the bustle, the noise died suddenly as the people in front spotted the hanging cat. Johnny, Harry, Ron, and Hermione stood alone, in the middle of the corridor, as silence fell among the mass of students pressing forward to see the grisly sight.

Then someone shouted through the quiet.

"Enemies of the Heir, beware! You'll be next, Mudbloods!"

It was Malfoy. He had pushed to the front of the crowd, his cold eyes alive, his usually bloodless face flushed, as he grinned at the sight of the hanging, immobile cat.