Loot the Lampwrights vault.
Large ruby ring and Dolphin necklace.
Find the key for the vault, then get into the vault.
First you will need to get A Lampwright's Guild membership ring you can either get one from one of the other quests related to this or you can kill the A guard watches over the room.If you choose to kill him.
When he is dead.
do get ring from corpse,wear ring
Now you are ready to continue.
do s,e,stairs,2w,kill valet
When The Grand Master's valet is dead.
When The Grand Master of the Lampwright's Guild is dead, take the An iron key from the corpse.
do get key from corpse,2e,d,w,n,unlock vault door with iron key,drop key,vault,move papers,get ring,get necklace
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