The character traces these runes upon a book, map, scroll, or similar object bearing written information. The runes detonate when read, dealing 6d6 points of damage. Anyone next to the runes (close enough to read them) takes this damage with no saving throw. Others within 10 feet of the runes take half damage if they succeed at Reflex saving throws. The object in which the runes were written also takes the damage (no saving throw).
As the spellcaster, the character and any characters the character specifically instructs can read the protected writing without triggering the runes. Likewise, the character can remove the runes whenever desired. Others can remove them with a successful dispel magic or erase spell. However, attempting to dispel or erase the runes and failing to do so triggers the explosion.