The Earl of Duke is the fifth quest from Duke Horacio in Lumbridge Castle.

Requirements to complete Edit

Get Dungeoneering to level 20.

Kill 1 Evil Duke in the Lumbridge Catacombs.

Rewards Edit

50 000 Blue anima

4000 Red Anima

15 Dungeoneering xp

Staff of Air


This Quest is currently Bugged from release on 7/14/16. After completing the dungeoneering and runecrafting requirements try restarting your game. 

If this doesn't work continue to increase dungeoneering to higher levels. 

This bug seems to only occur on the second Prestige. Try to reset the world through other means and the quest will work as normal.