Alteration [warding]
Level Magic-user 3
Components V, S
Casting Time 3 segments
Range Touch
Area of Effect One object containing writing
Duration Permanent until discharged (D)
Save None or Dexterity vs. Spell (save for half)
This spell allows the caster place a ward hidden within existing writing that will detonate if the writing is scanned.
The caster casts the spell and places the ward within the writing (inscribing with a fingertip).
The caster can set a control sequence that allows a reader to render the rune dormant while one reads the writing. This can be a command word, a series of gestures, or even a picture held in the mind.
Any creature that reads or scans the warded writing that is not the caster or one that uses the correct control sequence, will cause the rune to detonate when read:
The reader takes 6d4+6 fire damage (no save).
All creatures within a 10-ft. radius must make a Dexterity save vs. Spell or take the same amount (save for half).
The object must save vs. Magical Fire or be destroyed.
A magic-user can inspect the writing ahead of reading or scanning by using a special educated check as a complex activity. This check is equal to 5% per caster level (d%, a roll equal to or under this number is success). Alternatively. a thief can attempt a find traps check, but the chance of success is a flat 5%, regardless of level or Dexterity (i.e. d%; 01-05 finds the presence of the rune).
Unless removed by the caster, an explosive rune can only be removed with a successful dispel magic effect.