Love hits you when you least expect it, especially when you're Harry Styles and you have the worst of luck. If being sent away with your brother for a football camp which you aren't even the slightest bit interested in, for the entire summer isn't bad enough, he had to spend it with brother's man-whore of a best friend, Louis Tomlinson. As far as Harry's concerned, Louis' as straight as a pole, but what happens when he starts to feel something more? It absolutely sucks knowing you love someone who will never love you back... Right?

Alex Fitzgerald is just herself. No one cares about her. If anyone speaks to her, it's to hurt her. Nate Turner is the guy that everyone wants. Girls scream for him, boys envy him, and the school worships him. But he doesn't want any of it. He tries to keep away from everyone. He tries to be alone. But he just can't get a break. Naturally, Alex has a huge, embarrassing crush on Nate. And Nate has a huge, embarrassing crush on Alex. Neither will say anything. One day, in a state of boredom, Nate writes a message on a sticky note, and presses it under his chair during his biology class. Alex finds it during her study hall in that same room. She writes back. For the whole school year, Nate and Alex share a stream of yellow and purple sticky notes, writing to each other. Alex is happy that she has a friend. Nate is happy that someone is talking to him that DOESN'T know who he is. There's only one problem. Neither of them know who they're writing to.

'Hello class, my name is Miss Flack. I am the substitute teacher... So this term i have a project for you. It is in conjunction with my previous school. it will be a pen-pal project. The aim of this is for you to stop using mobiles computers and simply use a pen and paper' these words changed the lives of three boys. Harry Styles, Liam Payne and Zayn Malik start writing to a pupil each at Hall cross, but will it all be smooth sailing? Will they ever meet their mysterious Pen-Pal?