Midnight

He lives next door. One day, when looking out your window, you see him leave his house and walk into the woods. Curiosity takes over and you decide to follow him. When you arrive, you see him standing at the entrance to an abandoned house. The Roman luck house to be specific (Read the book for more info or look it up. the book is called "Wink Poppy Midnight" by April Genevieve Tucholke)