Looking into the laundry room, Hinrigh says it looks abandoned, yet people were there a moment ago. Nobunaga notes the hidden room was the same, then realizes something, leaving Hinrigh puzzled. Nobunaga explains: if the Heil-Ly expected intruders to break through walls, they must have assumed their neighbors would hit the traps first — the neighbors are their sensors. Hinrigh concludes whoever is moving the pieces is no fool.