Escapement Wheel of a Different Time and Space. Although there are only seven spikes on the surface, it can accurately measure the distance between time and space. When you hear the vibration from its movements, You must cover your ears. When the wheel is shaken seven times, Those who hear its noise, Regardless of their skill or bravery, Will fall into the endless darkness of time and space. Carla Donald is at the door of the Clock Tower's first floor collecting this item.