Book of Prophecies

The Foreteller's Script (予知書) is a book that was introduced in Kingdom Hearts χ. It appears when traveling to another world and is the source of the fragments (フラグメント) or cards that are handed out by the Moogle. These cards allow the players to use the power of the future.

Kingdom Hearts χ
According to Chirishii, before its creator disappeared, he bestowed his six followers with new names and gave five of them a tome of prophecy. These five followers would become the Foretellers and read the future written in the tome. One passage on the last page shocked them all:

To save the world from destruction the Foretellers use the power hidden in book and hand it on to the followers of their respective union.