excellent workmanship

Exploration Stage: Compartment No.8
From: Roger Doubledeal
Description: It would not be surprising if it was Roxy who was brave enough to send me a black cat. In fact, I recently won a lot of money by beating her in a three-shell game. Shall I tell you what trick I used? First, I took the ball in my hand, then I used a special thimble...
Completed: You are very good with thimble! As you can see, there is nothing fishy about my trick. It's all in my hands. But Roxy thinks I cheat. But when I think about it, she is not the type to use the black cat's curse for revenge, no matter how malicious she may be.