You're the newest member of the neighborhood, or at least, that's what you had thought. But as you dig, you find evidence that this isn't your first time here. In fact, you find a journal buried under the floorboards of your house, stating that you had come back 5 separate times, all entries pointing towards Wally as being suspicious before it seemed to just restart.
Before you can even question it, Wally's already in your home, holding an axe, and he doesn't look pleased with all your meddling.