Dingy Plaque

Dingy Plaque is found on the back of a lonely chair in the Deep Cavern. This area can be reached through the Dark Fissure in the Crumbling Depths in Deepholm. It holds the fourth clue for obtaining the Lucid Nightmare.

This is an anagram for "Racksum Greep is the key". Although the goblin's appearance hints at obtaining a Shadoweave Mask, he is not necessary to be visited in order to continue the secret chain.