One of your personal emanation spells becomes permanent.
Prerequisites: Spellcraft 25 ranks, ability to cast the spell to be made permanent.
Benefit: Designate any one of the character’s spells whose area is an emanation from the character. (Examples include many divination spells such as detect magic, detect chaos, detect evil, detect good, and detect law.) This spell’s effect is permanent (though the character can dismiss or restart it as a free action). Effects that would normally dispel this spell instead suppress it for 2d4 rounds.
Special: This feat may be taken multiple times. Each time, select a different spell to become permanent.
Source: Standard Reference Document under Open Game License v1.0a, which updated this feat originally published in the Epic Level Handbook, page 64.