Grimoire

Grimoires are a common casting device used by mages as a way to store magical knowledge without using internal leylines or massive ritual circles.

History
The first grimoires were theorized to have been created in Mesopotamia in the fourth century, and were in the shape of simple clay tablets. over the centuries they evolved to take the shape of papyrus or parchment scrolls, and eventually books. With the recent onset of the information age, several archmages have taken to a digital grimoire system of their own creation.

Construction
Grimoires originated from magical tomes (ancient magic textbooks) and originally functioned only to retain information about magic, Grimoires use ink mixed with conducive substances, allowing the user to pass magical energy through them in order to cast the spell using only the book and their own energy reserves. The first grimoire tablets used a network of conductive crystals set into the tablet, whereas books often make use of organic components such as blood mixed into the ink.