I received a copy of this book from D.G. Driver. I first met D.G. Driver when I reviewed Cry of the Sea, the first book in the Juniper Sawfeather trilogy, for Multicultural Childrens Book Day in 2018. You can find that review here. The thing about Driver's stories is that they NEVER go as you're expecting. Just when you think you know what's coming, you'll find you're wrong. Driver's stories never follow the expected narrative. I've read three of her novels and each time, I'm fully surprised by the plot twists.
Mark is head over heels for Bethany, his brilliant girlfriend. Mark thinks Bethany is way out of his league and that makes him insecure. He's dwelling on how to keep her interested in him as he wanders into his first class in high school. It is extremely overcrowded and he ends up stuck in the back of the classroom seated at an old, cluttered desk. As he's trying to find space to write, he finds the corner of the desk is deeply etched in beautiful cursive letters -- Eileen is written with a heart around it. He tries to recreate the writing multiple times and only succeeds when he writes it on his forearm in sharpie. He notes that it comes out perfectly and almost seems to glow on his arm. After that Mark goes back to thinking about Bethany and texts, "thinkn of u." Shortly afterwards, he finds a piece of paper jutting out of the desk and is surprised to find it is in the exact same cursive as the etched "Eileen" on his desk. More confusing, the paper has a short note that seems to be addressing his text message. The message admonishes, "What kind of note was that? Does it even make sense? You can't even spell, let alone romance a girl. Try again."
Now, I've read all the Potter books, so I know you should be deeply distrustful of anonymous messages giving you unsolicited advice. (See The Chamber of Secrets by J.K. Rowling and I'm going to take this moment to say that I am dismayed by J.K. Rowling's hostility towards trans women. It's horrible that such a great series is tainted by it's author's prejudice and hatred.) I guess Mark didn't read the book because he starts following the beautifully-written advice. Good idea? Bad idea? You're going to have to read the book to find out!