Glyph of revealing

To enact the glyph of revealing spell, the caster draws a special glyph on any relatively horizontal surface with a special ink. When the glyph of revealing is complete, it glows and then vanishes, but it subsequently causes all dweomers within a 120-foot-diameter sphere of itself to glow with a clear white radiance the same brightness as faerie fire.

The outlines of magically hidden inscriptions, invisible wizard marks, magically concealed secret pages, runes, glyphs, symbols, and the like within its area of effect are clearly shown so that they can be read or identified without being triggered. The glyph of revealing can be moved without damaging it once it is complete.

This spell originally appeared in this form in Faiths and Avatars for the AD&D game from TSR. Its use here is for the purposes of providing context for the campaign only.