Ulgon

Ulgon is a cave goblin briefly mentioned in While Guthix Sleeps. He is mentioned by another cave goblin as climbing down a rope into the chasm in the Tears of Guthix cavern, although it's not long enough to get to the bottom. He can be seen by the player hanging onto a wall when riding a Light creature down the chasm during and after the quest.

Trivia

 * Previously, during While Guthix Sleeps a rope could be seen going down into the chasm, presumably the one that Ulgon is climbing, but after the Tears of Guthix graphical update it can no longer be found, despite still being referenced in dialogue.