"Impossible again," James said in frustration. "Ever since my dad's day, there've been protective spells all around the pitch to keep people from interfering with matches. There were a few instances where dark wizards tried to use spells to hurt him or throw him off his broom. Once, a bunch of Dementors swarmed right onto the pitch. Ever since, there've been boundary areas set up by the officials. No spells can get in or out."
"What's a Dementor?" Ralph asked, his eyes widening.
"You don't want to know, Ralph. Trust me."
"Well, then, looks like we're back to square one," Zane said dourly. "I'm all out of ideas."
Ralph stopped suddenly in the middle of the corridor. Zane bumped into the larger boy, stumbling backwards, but Ralph didn't seem to notice. He was staring hard at one of the paintings lining the corridor. James noticed it was the one they had stopped at earlier to ask for directions to the laundry room. The very observant servant in the rear corner of the painting had caught James' attention on the way down, but only as someone they could get directions from. James had become almost inured to the random, watchful characters in the paintings all over Hogwarts. The servant stared sullenly out at Ralph as the knights in the painting hoisted their tankards and turkey drumsticks, slapping each other happily on their partially armored backs.
"Oh, great," Zane said, rubbing his shoulder where he'd run into Ralph. "Look what you've done, James. Now Ralph's obsessed with every fifteenth painting. And not even the good ones, if you ask me. You two are the weirdest art lovers I've ever met."
James took a step closer to the painting as well, studying the servant standing in the shadowy background with a large cloth over his shoulder. The figure took a half-step backward, and James felt sure that it was trying to blend further into the dim recesses of the painted hall. "What, Ralph?" he asked.
"I've seen that before," Ralph answered in a distracted voice.
"Well, we just stopped at this painting not ten minutes ago, didn't we?"
"Yeah. It looked familiar then, too, but I couldn't place it. He's standing different now…"
Ralph suddenly dropped to one knee, flinging his backpack onto the floor in front of him. He unzipped it quickly and dug inside, almost frantically, as if worried that whatever inspiration had struck him would flee before he could confirm it. He finally produced a book, gripped it triumphantly, and stood up again, riffling toward the back. Zane and James crowded behind him, trying to see over Ralph's broad shoulders. James recognized the book. It was the antique potions book his mum and dad had given Ralph for Christmas. As Ralph flipped through the pages, James could see the notes and formulae that crowded the margins, crammed alongside doodled drawings and diagrams. Suddenly, Ralph stopped flipping. He held the book open with both hands and slowly raised it so that it was level to the observant servant in the background of the painting. James gasped.
"It's the same dude!" Zane said, pointing.
Sure enough, there, in the right-hand margin of one of the last pages of the potions book, was an old pencil sketch of the observant servant. It was unmistakably the same figure, right down to the hook nose and the sullen, stooped pose. The painted version recoiled from the book slightly, and then crossed the hall as swiftly as it could without actually running. It stopped behind one of the pillars lining the opposite side of the painted hall. The knights at the table ignored it. James, watching intently, narrowed his eyes.
"I knew it looked familiar," Ralph said triumphantly. "He was in a different position when we first came across him, so I didn't place it straight off. Just now, though, he was in exactly the same pose as the drawing in this book. Now, that is weird."
"Can I see?" James asked. Ralph shrugged and handed the book to James. James bent over it, flipping back to the front of the book. The margins in the first hundred pages were filled mostly with notes and spells, many with sections scribbled out and rewritten in a different color, as if the writer of the notes was refining his work. By the middle of the book, though, drawings and doodles began to crowd in with the notes. They were sketchy, but quite good. James recognized many of them. Here was a rough sketch of the woman in the background of the painting of the king's court. A few pages later he found two quite detailed drawings of the fat wizard with the bald head from the painting of the poisoning of Peracles. Again and again, he recognized the sketches as the characters in the paintings all over Hogwarts, the secondary figures who'd been watching James and his friends with avid, unconcealed interest.
"Amazing," James said in a low, awed voice. "All these drawings are from paintings all over the school, you see?"
Ralph squinted at the drawings in the book, then back at the painting again. He shrugged. "It's weird, but not all that amazing, is it? I mean, the guy who owned this book was probably also a student here, right? Sounds like he was a Slytherin, like me. That's why your dad gave me the book. So whoever he was, he liked art. Lots of art lovers sketch from paintings. Big deal."
Zane's brow furrowed as he looked back and forth between the drawing of the observant servant and his painted equivalent, who was still skulking near the pillars in the background. "No, these aren't just sketches," he said, shaking his head slowly. "These are the originals, or so close it's impossible to tell the difference. Don't ask me how I know. I just know. Whoever sketched these drawings was either a master forger… or he was the actual artist."
Ralph thought about it for a moment, and then shook his head. "That doesn't even begin to make sense. These paintings were painted at lots of different times. No way one bloke was responsible for all of them. Besides, a lot of these paintings are old. Way older than this book."
"It makes perfect sense," James said, clapping the potions book shut and looking down at the cover. "Whoever painted these didn't paint the whole paintings. Think about it: not a single one of these sketched characters is of a dominant person in any of the paintings. Every one of them is a drawing of some totally unimportant background character. Whoever drew these just added the characters into existing paintings."
Zane cinched up the corner of his mouth and furrowed his brow. "Why would anyone do that? It's like graffiti, but nobody would notice it except the guy who painted it. What's the fun in that?"
James was also thinking hard. He nodded slightly to himself, looking down at the old book in his hands again. "I think I have an idea," he said, narrowing his eyes thoughtfully. "We'll find out for sure. Tonight."
"Come on, Ralph!" James complained in a harsh whisper. "Quit tugging! You're yanking it up. You can see my feet!"
"I can't help it," Ralph moaned, crouching down as far as he could. "I know you said your dad and his mates used to do this all the time, but one of them was a girl, remember?"
"Yeah, and she didn't eat seven meals a day, either," Zane said.
The three of them shuffled down the darkened corridor, crammed under the Invisibility Cloak. They'd met at the base of the staircases, and apart from one tense moment when Steven Metzker, the Gryffindor prefect and brother of Noah, had passed them in the hall singing slightly off key, they had encountered no one. When they reached the intersection near the statue of the one-eyed witch, James directed them to stop. The three of them maneuvered clumsily into a corner and James opened the Marauder's Map.