The Codex Antifexa were a set of eight instruction manuals left by the Eari that explained in great detail on how to use the Eari Stones. One book was provided to each of the Tal Calar.
Each manual was arranged into five parts:
- Section One: The Nature of Antifex - The Codex begins by explaining antifex, its properties, dangers, and how the stones use it to destroy magic.
- Section Two: Duty of the Tal Calar - The next portion details the importance of the keepers, their duties, how to care for the stones, and how to maintain the secrets for all time.
- Section Three: Wraighs - The third section explains what the wraighs are, their nature, and everything about them and how they were brought to the Moon Lay for use by the keepers.
- Section Four: Detecting the Fex-Endowed - The fourth section explains how the wraighs are used to detect magic and how to form a portal through the Moon Lay to unleash them upon their prey.
- Section Five: Wielding the Stone - The final section explains how the stone uses the wraighs to release magic so the stone can siphon it, trapping it forever.