Texting

Texting is a method of instantaneous magical communication utilizing a pair of mystically entangled scrolls. Writing or marking one of the scrolls will cause the same marks appear on the other, regardless of the distance that separates them. Creating such scrolls requires a considerable amount of magical expertise, and specially prepared parchment and other ingredients. The spells and rituals involved in creating them are closely guarded secret of the Mages Guild.

An example of this type of artifact is Samuel's Scroll.