Hold Portal
(Alteration)
Level: 1
Range: 20 yds/level
Duration: 1 rd/level
Area of Effect: 20 sq. ft/level
Component: V
Casting Time: 1 segment
Saving Throw: None

This spell magically bars a door, gate or valve of wood, metal or stone. The magical closure holds the portal fast, just as if it were securely closed and locked. Any extraplanar creature (Djinn, elemental, etc.) with 4 or more Hit Dice can shatter the spell and burst open the portal. A magic-user of 4 or more experience levels higher than the spellcaster can open the held portal at will. A Knock spell or a successful Dispel Magic spell can negate the Hold Portal. Held portals can be broken or physically battered down.