a day as someone else

You grab the book, the most obvious culpit, and start to read. The first part sounds spookily familiar. It's about a boy with your name who goes to a library, finds the very book you hold in your hands, and turns into a girl. The chapter ends with the main character inspecting the book, and reading about themselves.

Amazed, you try to read ahead, but find the words impossible to read, as though it's a different language even though you're sure it's English. While shocked at the obvious magic, you are comforted by the title of the book, and decide to enjoy the rest of the day as a girl.

Where to?