Lock and Key of Dalt
This is obviously a matched set. Both are made of brass with fine silver filigree. Neither appear exceptional, the lock could be installed into just about any normal door and the key would fit conveniently in a pocket or on a key ring. While the Lock and the Key both have their own individual powers their true power is when they are used together.
The Lock
This lock is designed to protect the door it is installed in and to punish those that violate the portal.
Lockpicking:
The lock imposes a -20% to any pick locks attempt. Additionally, anyone attempting to pick it is cursed (as by a 16th level magic user) with a -10% to all future lock picking attempts.
Forcing the Door:
The lock imposes a -2 on any checks to force a door it is attached to. Additionally, anyone attempting to force the door is cursed (as by a 16th level magic user) with -1 on all future open door rolls.
Destroying the door:
The lock helps protect the door adding +1 hardness to it. Additionally, if anyone destroys the door (taking an axe to it, blasting it with a spell, etc) they are cursed (as by a 16th level magic user) so that all future portals are barred to them. Doors, drawers, windows and other portals will just seem to frequency become stuck or warped so that it requires an open doors roll to open them. If the door normally would already take an open doors roll to open then the roll is at -2.
The Key
This key will magically fit most locks and has a 5% per wielder level of unlocking a mundanely locked door.
Additionally, 3/day it can cast Knock as a 16th level magic user.
The Lock and Key
Working together the Lock and Key have two additional powers.
Locking the Lock.
Using the Key to lock the lock triggers a guards and wards spell as cast by a 16th level magic-user.
This power may be used 3/day
Linking the Doors
1/week the key may be touched to any door (including inoperable or even false doors) and a command word spoken. The wielder may then appear to open the door. This is actually an illusion, the door is not actually opened, and instead a magical portal is opened between the door touched and the door where the Lock is installed. This connection between the portals lasts for 24 hours but can be closed and reopened by (and only by) the wielder of the key. Note: in order for this power to work the key must be touched to a different door than the door with the Lock. Using the Key on the door with the Lock does not enable the wielder to create a new connection to another door elsewhere.
For example: a thief carrying the Key has been discovered in a burglary and is being chased by a group of guards. He runs down a corridor and uses the key while wrenching open and darting through a door to a closet. The guards, laughing because they know there is no way out of the closet surround the door and yank it open… only to find an empty closet. They thoroughly search the closet in case the thief is invisible but find nothing. Meanwhile the thief is safe at home and relaxing. Several hours later, after the search has died down, the thief reopens the portal and steps back ‘out’ of the closet to continue his pilfering.