This clip isolates the sound that woke my wife up in the middle of the night. She said she woke up to a strange noise that was accompanied by a vibration that felt like it was shaking the whole house. My 3-year-old daughter came into our room moments later to say something scared her. Her room is in the front of the house on the second floor above the front door where the Nest camera is located. Our room is on the second floor in the back of the house. When my wife picked her up to comfort her and bring her back to bed, my daughter pointed at the window and said "Someone is out there." She has never said this before or ever since. I slept through all of these events. The next morning my wife scrolled through our Nest recording to see if the camera picked up the sound she and my daughter heard. This is what she found.