Tower of Night

The Tower of Night (夜塔, Yorutō) was a large Tower of unknown origin, seemingly alive, that first appeared upon the surface of the in, , following the revelation of London being situated on the current Jūreichi (重霊地, Important Spirit Ground).

Overview
Naoko Izuru and Maya Zhijun, upon initial and follow-up research, have determined that the Tower of Night (named such because it appears between the hours of 10:00 and 12:00pm every night) not only disguises the  of within range of its energy field, but the Tower itself is also seemingly alive. It possesses its own flow of spiritual power which can only be identified through physical touch.