However, either their spells were turned against them or Nimor used one of his magic rings to retreat to the Plane of Shadow before he could be slain. Taking advantage of this tactic, Gromph tricked Nimor into holding a triangle of light, and when he retreated to the Shadow Plane, he was trapped there, for a patch of shadow was required to return to the Prime Material Plane. However, the triangle's magic blinded Gromph, forcing him to view the world through the eyes of his rat familiar.
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