To Start: See Below
If you have some Treasure Tickets, you should take them to The Royal Vault for some useful rewards.
This is a Search quest. This quest is repeatable.
This quest is no longer available in the game, but the information is kept here for historical purposes.
To begin this quest, click on Sanctuary's Royal Vault minigame icon on your atlas, then choose Show Path. The quest will automatically be added to your journal, and a quest marker will point you toward the Royal Vault.
Once you click on Gulsh, the troll in front of the vault, the quest will automatically complete.