Margaret Peregrine is a high school sophomore. Most of the time, she's either at school, at the school robotics club, at the school chess club, or doing schoolwork. Today, she's cleaning out her late great-grandmother's attic.
She doesn't expect results quickly. If she doesn't make any progress in a month, she'll ask her mom if her grandmother might've had anything weird going on. In the meantime, she practices shapeshifting in her bedroom at night and checks out everyone she sees at school for similar medallions despite the fact that hers is still under her shirt.
Next step: befriend this person until she can tell her weird things without immediately being thought crazy. And also until knows whether she can be trusted not to report her to the secret dragon police or whatever. She sits with that classmate at lunch the next day.
"Yep! That's me. And you're Kevin?"
"I like meeting new people. I know we're in the same gym class; do we have anything else together?"
"Yeah, that's right, second period with Mrs. Stevens. I'm really enjoying Pride and Prejudice."
"A lot of things are better than Gatsby."
"None of the characters had any clue what they were doing. At least Elizabeth Bennet seems like a functional human most of the time."
"Well, I like the old stuff. But what's good and recent? I can always use recommendations."
"So recommend me boy books, I read whatever."
Thinking books have genders is weird. But hey, you look for weirdness, you get weirdness. He can have odd taste in books and still be a secret dragon.
"I'll have to check those out. So what-all do you do when you're not stuck in school?"
"Rollerblading sounds fun, but I admit I've never actually tried it and I'm not sure where to start."
"I've been ice skating once, it was nice except for the cold. And I guess rollerblading doesn't have that problem."