Gubblebak is a mythical goblin referenced during the Grim Tales quest. During the quest, players find a golden goblin statue which, according to legend, is Gubblebak's gold-covered body. However, the legend is something of a fairy tale, making its accuracy unclear.
According to legend, Gubblebak was a money-loving goblin who forced other goblins to smelt gold ore for his own benefit. Tired of this, the workers led a mutiny, during which Gubblebak tripped into a vat of molten gold. Still alive, Gubblebak climbed out of the vat and hurled himself into a trough of water normally used during the smithing process. The gold's rapid cooling led to the gold's solidifying, killing Gubblebak but leaving his body encased in a statue of solid gold.