- Go to Weapon Store in Lime and talk to Theo.
- Ask Theo to learn a new skill. However, he says a Golden Hammer is needed to learn it.
- Go to Sevis and ask Arsen / Arquette for Invisible Cloak.
- Needs Golden Fur x20 (Cankura drop) and Shiny Thread x10 (Happy Bah Bah drop)
- Return to Arquette with the ingredients and she gives you the cloak.
- Go to Elim and enter the nobleman's house.
- Click on the Vault/Safety Box to steal the hammer.
- Return to Theo and you will learn the skill
Good luck ,,, (>.<)