Monster Mansion

Me and My older sister, Alex wanted to go on a adventure to bond. Yet once we started this adventure..we then discover...we are being chased by a monster....which is chasing us! Once we got a safe place to hide then I realized...something is suspicious. How did my sister even know about where this random mansion is?! Why is she so calm?! Did she...plan my deathor something?! You will see...in my story...monster mansion...