"Alright, Minerva," Professor Flitwick said in a high-pitched voice, "You should be pleased because Peter Pettigrew died heroically. Witnesses—oh, they were Muggles, whose memories were wiped by the Ministry of Magic afterward—they told us how Peter Pettigrew cornered Black. They said he was crying, 'Lily and James, Sirius! How could you!'... Then he picked up his magic wand."
"Of course, Black was quicker, and Peter Pettigrew was blown to bits." Professor McGonagall added, visibly pained as she spoke: "Good heavens... We only found his finger at the scene..."
At this, Professor McGonagall blew her nose and said emotionally, "Foolish child, silly child... He was never any good at dueling; the Ministry of Magic should have intervened..."
"Do you remember the nicknames they had at school?" Professor Flitwick said, patting a chair, "Moon Face, Wormtail, Bigfoot, and Prongs—they were inseparable friends, but ultimately it's..."
"Wait!"
Harry suddenly got up; hearing this, he suddenly remembered where he had seen Peter Pettigrew's name.
He hurriedly took out the Marauder's Map from his wallet, placed it on the table, and asked Professor Flitwick, "Are you saying—they are all someone?"
"Let me tell you." Professor Dumbledore said suddenly.
Everyone turned to look at Dumbledore.
"Moon Face is Remus Lupin, our professor of Dark Magic," Professor Dumbledore explained to Harry. "Wormtail is Peter Pettigrew, Bigfoot is Sirius Black, and Prongs..."
"Is my dad, James," Harry answered.
"Yes, these are their nicknames," Dumbledore nodded and said.
"But I've seen Peter Pettigrew's name appear on this map." Harry patted the map.
"What's this?" Dumbledore asked with interest, "Oh, I seem to have seen it before; it once belonged to your dad, and later was with those two mischievous boys from the Weasley family. Now it's back in your hands, isn't it?"
"Yes." Harry unfolded the map and said, "This is a Marauder's Map—it can record in real-time any location within Hogwarts and the people appearing at Hogwarts..."
With that, Harry stretched out a finger and pointed to the center of the map.
"I solemnly swear I am up to no good," he said.
Everyone looked down at the map together, and ink lines like spider webs immediately began to appear from where the magic wand had just touched. These lines converged, intersected, and extended to every corner of the parchment; then words began to appear at the top of the parchment, large, curved green letters: Moon Face, Wormtail, Bigfoot, and Prongs, proud to present—Marauder's Map."
"Sounds like something James would invent," Professor McGonagall said firmly, "Good heavens, if I had known James and the others were making this thing at school, I would have confiscated it long ago."
"Yes, 'I solemnly swear I am up to no good'—what a mischievous masterpiece—" Professor Flitwick said regretfully.
"But what's the relationship between this and the map?" Professor Sprout asked.
"I've seen Peter Pettigrew's name appear on this map, right here—" Harry found the location of the Great Hall, and sure enough, there was Peter Pettigrew, and he was... with Ron?!
The professors leaned over to take a look, and sure enough.
But Professor McGonagall frowned and said, "That's impossible; Peter Pettigrew is dead—we all know that... Maybe there's something wrong with this map..."
"One of the creators of this map is still at the school," Professor Dumbledore reminded, "Perhaps we could call Professor Lupin to ask him what's going on?"
"I'll get Peeves to fetch him," Professor Flitwick said.
"Let's meet in the headmaster's office, Harry—" Professor Dumbledore said to Harry, "Perhaps you could invite Miss Grindelwald to come to the headmaster's office with you."
"Okay, Professor." Harry quickly nodded.
Vivi was still napping in the Slytherin area when Harry went over, and he found her and Cassandra kicking each other's long legs in playful banter.
"Hey." Harry went over and said just a "hey," only to be pulled down by Vivi's leg.
"Hehe, you actually came to me willingly," Vivi leaned over, partly pressing Harry, "Are you ready to pay the price, my little..."
"It's urgent." Harry quickly said, "I've found some information about Sirius Black—"
Upon hearing Harry's words, Vivi sat up swiftly.
"You mean that Black, the one who wants to kill you?" she asked, "Where is he?"
"Come to the headmaster's office with me first," Harry said, not forgetting to include Cassandra: "Cassandra, you should come too."
"It's rare that you remember to invite me, Potter," Cassandra said leisurely, lying on the ground, "I thought that sneaky cat had blinded your eyes and made you incapable of seeing anyone else."
Honestly, this was a difficult comment to respond to.
Harry coughed a couple of times and said to her, "Come along quickly."
When the three of them arrived at the headmaster's office, they happened to see Lupin and Snape rushing there, looking travel-worn.