Transmutation
Level: Assassin 1, Mystic Ranger 1, Ranger 1
Components: V
Casting Time: 1 swift action
Range: Personal
Target: You
Duration: 1 round
You mutter the words of this short spell and dive down the hallway, dancing between the armed guards and out the gate.
You provoke no attacks of opportunity for moving.
Source: Spell Compendium (Page 132)