Crown of Security
Created by arch mages so that their king would have protection from almost any kind of attack, a Crown of Security is an invaluable tool to anyone. While traditionally this item comes in the form of a crown, a few other rich noblemen and merchants have commissioned helmets, hats and similar devices with the same effect. It is said that a lich holds the original Crown of Security, but so far this myth has been unconfirmed, and could just be conjecture.
So long as the Crown is worn, it produces a constant Globe of Invulnerability effect. In addition, the wearer can cast a Wall of Force spell three times per a day and can cast Teleport once per a day (neither of these effects are affected by the Globe of Invulnerability.)
Strong abjuration; CL 11th; Craft Wondrous Item, Globe of Invulnerability, Teleport, Wall of Force; Price 1,628,000 GP