Wall of Doors (Arcana)
Level: Mage 2
Mana: 8. Base Success: 90%.
  Conjures a solid barrier made out of wooden doors, displacing any creatures in its path and blocking further passage. The doors are initially locked but can be opened or destroyed normally. At caster level 5 the doors are created Wizard Locked (+10 to the Lockpicking and break DCs, but they open automatically for you). At caster level 7 the doors are created with wards that prevent incorporeal and summoned creatures from passing through a door while it is closed.