Mirror of Truth

From Editable Codex

The Mirror of Truth is a magical item, but not very much is really known about it. It somehow came into possession of Gustacio of Moonshade, one of the few honest mages, who in return gave it to the Avatar in Ultima VII/2, after he/she successfully solved the experiments connected to the lightning colors.

The Mirror of Truth is needed along with the Crystal Rose of Beauty and Helm of Courage in order to defeat Rabindranath in the Dream World surrounding Gorlab Swamp.