Princes of Ragnarok
The Tesseract is a secret organization of lorekeepers, historians, and spellcasters. They are especially fascinated by the influence of the Planes, and they take their name from their model of the cosmos, a four dimensional hypercube. They keep hidden libraries, and covet knowledge, only sharing secrets with select outsiders. Prominent members include well informed bards and scholarly wizards.
Tesseract outposts and libraries can be found anywhere planar influences are felt. They are said to maintain a central library, although even many members are unsure of its existence. They operate in secret, and a member might even return information to his home library rather than a fellow member. The Tesseract is currently investigating incidents that suggest the opening of elemental nodes around the world