Access To Catacombs
Its kind of mystery quests.
Rewards : Access to catacombs respawn Rb 4 Lvl 1000
Requirements : Rb 4 Lvl 1100, golden mug, candlestick, pick and machete.
You can get pick,candlestick and machete from "Tool Vendor" and golden mug from "Dragon Lords"
Start the quest here :