Rathe's Mage Lock
(Alteration)

Range:  0
Components:  V, S, M
Duration:  Permanent
Casting Time:  1 round
Area of Effect:  Portal touched
Saving Throw:  None

The mage lock is an advanced form of wizard lock. There are two main changes from the latter. First, while the spell is in effect, the portal cannot be damaged or destroyed by any physical (not magical) means short of an elemental. Note, however, the magical means of destroying the door (fireball, disintegrate, etc.) still work normally, and if the door is destroyed, the spell is broken. If the spell is dispelled or negated by any means whatsoever (even temporarily), the portal will crumble into dust.
Second, the spell has another application; it can be placed upon an object. The effect of this is to allow anyone wearing or carrying the object to open any mage locks by the same wizard. For example, if one of Rathe's mage locked bracelets was worn, the wearer could open any door mage locked by Rathe (but not by any other wizard). The material component is half a pound of iron filings for the first application and 100 gp worth of diamond dust for the second.

