A greatly enhanced version of the First Circle Fire Wall spell. The Fire Maze fills an area of 30 cubic Legats with intense magical fire, which deals 2D6+8 damage to anything that passes through it. The Mage gestures where the wall is to appear, and it will then burn for 10 minutes.
Unlike the lesser spell the Fire Maze has a variable geometry. It can be arranged in any shape so long as no part is less than 1/2 Legat in any dimension, and no more than 4 Legats of unsupported height (so for example a low wall 1/2 a Legat high, 1/2 a Legat deep and 120 Legats long is possible). No part of the wall may be more than 15+Level Legats from the Mage when he casts the spell. At least some part of the wall must be supported on a horizontal surface, but this can as easily be stone or water as something flammable. A roll To-Hit (using the Ranged / Special (magic) skill) at -4A is needed to conjure the wall such that it hits someone as it appears.
The Mage can easily shape the wall with multiple branches and turns so as to entrap someone within it, but the wall cannot entirely enclose someone. A person so trapped must win a contested Int roll against the Mage to escape. The number of rounds they are trapped equals the number of rolls needed to succeed.