We Know Where You Were Last Summer
Chapter 4 Who?
Hermione was walking down one of the corridors at Hogwarts. She felt strangely chilly, even given the fact that the school was several hundred miles from London. Some of the other students were whispering, and pointing at her robe. Mystified, Hermione finally looked down at her clothes.
She wasn't wearing a robe. In fact, she wasn't wearing anything. She was looking down at her own breasts. Hastily she redeployed her books to cover her chest.
"Ooh, look, Draco," Hermione heard Pansy Parkinson's voice behind her. "A Muggle arse!"
Hermione spun to hide her posterior from the Slytherins, but it did little good, because there were people all around her. There was a room off the corridor nearby, and she tried to make her way to it in order to hide herself. But she walked slowly, and slowly, and-
She woke up.
She was in her bed in the Granger house, tangled up in the bedsheets. Nobody was gawking at her, nor would it matter if they did, because she was wearing decent pyjamas. It was just a nightmare.
Hermione was well-read enough to know that nude-in-public nightmares were a common phenomenon. But in her case they were probably triggered by her resentment yesterday, that various people had violated her privacy.
I gotta find out how they did that, so I don't keep brooding on it, she told herself.
But first, there were mundane Muggle matters to take care of.
She joined her parents for breakfast. They asked if she had slept well, and she lied and said yes. Then they started planning their day. Once more the Granger parents had a full day at the dentists' office, while Hermione had nothing scheduled. She agreed to do some chores around the house, which she hoped would keep her mind occupied for a bit. She would have to do it without magic, even though Mrs. Weasley had told her quite a few Household Hex Hints.
Later, while polishing some furniture, she thought of something odd. Students of Gryffindor tended to let their hair down a bit in the Common Room in the evenings, sometimes spilling things and generally making a mess. Yet whenever Hermione came back down in the morning, the room always looked impeccable. How? Some sort of reverse-entropy spell that eliminated the disorder? She hadn't wondered about it before.
But that puzzle wasn't important. She needed to concentrate on the spying problem.
It was typical of Hermione that, while physically involved in doing household chores, she mentally was planning out how to find information.
Her usual strategy was to visit the Hogwarts library, either open stacks or the Restricted Books. But Hogwarts was hundreds of miles away. She had heard of something called the Internet where one could look for information from any computer, but she quite doubted that the Hogwarts Library was on it.
The spying spell could probably be classified as a charm, in which case the expert will be the elder Professor Flitwick. But she had no idea where either of the Flitwicks spent their summer holidays.
What about the wizards at the Ministry?
McGonagall had told her about the trace but clearly did not want to go into details; she thought the trace was a good idea. It would probably be impossible to get information out of McGonagall against her will.
There were two other workers at the Ministry whom Hermione knew well: Percy Weasley and his father. Percy, however, was unlikely to go out on a limb, particularly at the beginning of his Ministry career. For him, "prefect" was an anagram of "perfect".
Arthur might be a little more unconventional: after all he was fascinated by Muggle technology, which other wizards regarded as a silly hobby. But he respected Hermione a lot, and she was reluctant to tell him that she had done something stupid.
Did it matter? What Jonny had tried to do was far more reprehensible than Hermione's actions; she had just been naive. But that was precisely the problem. To Hermione it was much more important to be clever than to be pretty, or sexy, or popular.
As her mind backed off from the idea of talking to the Weasleys, it banged into a seemingly irrelevant idea: the Marauders' Map.
Harry had been given the map during the past year. It came directly from Fred and George, but its original owners and inventors were supposed to be Harry's father James and his three friends: Sirius Black, Remus Lupin, and Wormtail. The map showed the location of nearly every denizen of Hogwarts, nearly 600 students and several dozen professors. Harry – rather typically – didn't worry about how it worked; to him its importance was that it was useful for dodging people like Draco and Filch, and the association with his father. Hermione had been too distracted by her course overload and the time travel to study it. But now that she thought about it, wasn't it another manifestation of the spying spell, on a huge scale?
James Potter was dead. Sirius Black and Wormtail were in hiding, for quite different reasons. That left Lupin as the only inventor whom she might be able to ask.
That night, before the Weasleys' owl returned, Hermione wrote Mr. Weasley a message asking if he knew Professor Lupin's current whereabouts since he "resigned" from the school. The faithful Mr. Weasley sent back a prompt answer.
Yes, I know where Remus is. He is currently staying with the Tonks family – Ted Tonks, his wife Andromeda, and their daughter Dora. They live near London. Since I know that you're cut off from the Floo network and are restricted to Muggle transport, I've included their address.
Hermione checked the result on a map, and discovered that the house was fairly near a suburban railway station. This was a little surprising, since wizards rarely used the railway except for the Hogwarts Express. Maybe it was a coincidence, but it was a useful one for Hermione, who would be able to reach the Tonks house easily.
When she woke up the next morning, Hermione could remember no nightmares during the night. Her mind was settled. After all, she was doing what she enjoyed best: the pursuit of knowledge.
NOTE: The mysterious cleanups at Hogwarts are due to elves, as Hermione is to discover during her fourth year.
NOTE: I am assuming that the movie Flitwicks, the Charms teacher and the music director, are two separate characters, maybe uncle and nephew. The music teacher never appears in the books.