The Knowing Glass
From UnderlightWiki
A prime artifact created by the Dreamseer Guild to aide in the creation of the Ark of Creation.
A spherical looking glass hand carved from a single block of cold, hard facts. Truths dance across its polished surface, distorted by the curves of the sphere. No darkness can conceal its surface, nor can it obscure what can be known in the glass. Looking directly in the Knowing Glass, one can understand nearly any truth that can be known, except that which is directly behind their own ego. The knowledge that this belongs to the Seer's Guild is the first truth learned when holding it.