This inscribes a set of characters on any surface that explode when someone attempts to read them. They may be inscribed in any language and as any message.

These runes will likely destroy all but the most hardy objects they're inscribed on.

Innate Attack (Burning) 1d [12] 
    Explosion 1 [+50%] 
    Triggered Delay [+50%] 
        Reading the runes triggers the explosion 
        May be removed by Neutralize (Magic) 
    No Signature [+20%] 
        The runes impose a -8 to detect as magical 
    Magical [-10%] 
    Spell Components [-20%] 
        Must say "runes" in Latin 
        Must gesture with hands 
Levels 2-3 [15/17] 
    Increase Explosion by 1 level [+50%] 
Levels 4+ [+17/level] 
    Increase damage by 1d [+5 base]