The twelve legged spider has its legs like the numbers on a clock.
It is the guardian of the electric hell, in mutual aid between time and electricity, which are great friends. In fact, electricity has maintained the illusion of time during the last 3000 years of its inexistence.
The twelve legged spider puts itself on the back of electric hell's recidivists' head in order to render them lonely by using occlumency, playing with their mind like all spiders, experts at occlumency, can. It is said that some people go up to eat spiders in hope of obtaining that power. The 12 legged spider can only be seen by those who never tried to violate time's laws. It is said that no one should refer directly to it (people say "that spider") or point at it because it is not meant to be self conscious or even conscious of the others like it. They can't see themselves or their like.
It is the first form of reapparition, on our plane, of time's spirit. It retains the void's trauma, origin of the impression of being inexistent that "that spider" and those who have it share. Sharing their mind with that of "that spider". Some say it tries to debase people, bringing them to a state that will greatly tempt them to magically void things, in order to learn it itself. Others believe it really wishes to become inexistant, by voiding itself or being voided by others.
Paradoxically, it can greaten the magical powers of time elemental spirits where they can instinctively go back in time on emergencies or moments of great distress.
The only being who can take advantage of it is the god of time is its weakest human form. In that case, knowing all gods are aware of the void, it brings the god of time to realize once again that it is a god. A god is defined as a being which created itself out of the void. Since they remember their transition, they remember the void. It is one of the mechanisms of defense gods created in case they become weak and unaware of their powers. Therefore, that spider is a monster but also an in extremis rampart of defense to godly spirits.
That spider is also guardian of the terrestrial voids where it is generally found.
More to come,
madikantia.