Magic Contract

Magical contracts are not uncommon in the world. They come in many forms and kinds. The most basic are created to confirm the identity of the signatories. Others force compliance through magical compulsion, while the most powerful are contracts with divine or otherworldly entities that allow for subcontractors to be added to the contract.
These most powerful contracts are often called Tomes or Codicies. Several well known contracts are used to empower spells, and some are described below. A Codex is typically more powerful than a Tome, though exceptions exist.
The Codex Lingua link  This Codex is the source of the language spells of comprehend languages and tongues. It resides in the realm of Mechania in the Library of All Words. Magic users, by enacting the right rituals (aka spells), are automatically considered cosignatories to the contract within the Codex, and can extend this contract to items they create that replicate these spells.
Contract of Fae Alimentum This Codex is the common source of the spell Hero's Feast. The contract is with an Archfae named Escalon who loves his collection of goblets and bowls. Alternatives do exist that require different forms of payment as spell components, most notably: Avlin's Bargin (A Djinn's variant contract requiring fine art as payment), The Dinner of Souls (Hellish equivalent requiring souls), and The Blood Sustenance (Chaos equivalent requiring blood sacrifice). Temples and natural shrines are typically constructed according to divine principles of construction, Priests and Druids that are anointed in these places are automatically added to the contract the sacred geometry and rituals of the temple/shrine matches. Not all shrines and temples however are constructed in a way to be co-signatures, for example the temples of lizard men do not have the requisite requirments and their priests are unable to cast a Hero's Feast.
The Tome of Tempe's Commissariat This contract allows signatories to store objects for retrieval wherever they may happen to be. The terms vary, but it enables a signatory to store weapons, tools, and changes of clothing for immediate retrieval. Unlike the above contracts which assume contract based on ritual or geomantic completeness and automatic delegation, this contract must be signed in person with Tempe. Each signatory has different terms and allotments for use. Many secret agents and assassins desire to become signatories to this contract as it has fantastic opportunities for infiltration and equipping behind enemy lines.
Tempe themselves is an enigmatic character who lives on a manifest demiplane with a series of teleportation devices that allow him to offer these services. Sadly his roster is often full and a new slot only opens up on the death of a former signatory.

Type

Contract, Civil