Six ("Baf" in The Pencil Language or Ect in Future English) is the 6th(?) verse in the One Chain, and is also the 4th biggest one. This is the only verse in the One Chain to be inaccessible, and the only way to learn about it is to send light waves or other forms of electromagnetic waves to Six, and use a sort of 'echolocation' to determine where objects are and what they are made out of.
Somehow, Six cannot be entered from Seven.
Six appears to be a black sphere, and much resembles many of the other verses in the One Chain. However, when looking from the inside of Six, Six appears to have an extremely bright interior. The case for this is still unknown.
The structure of Six is mostly unknown, but creatures have proved that Six consists of mostly point-like particles that contain Glitchonicite. Further research on Six also determined that Six had millions, possibly billions, of black holes inside it.
It is also believed that six Fives reside inside of Six. However, even the existence of Five is still debated, so it is unknown whether this notion is true.