A Convincing Argument

Exploration Stage: Observatory
From: Detective
Description: I noticed a huge copper basin. Helen said it’s from her father’s collection. I wonder how this basin helped watch the stars in the old days? Let’s take a closer look at it.
Completed: Look, there’s an engraving on the basin. Hmm... It’s a story about a sultan’s gold. But how will it help us find our Astronomer? Listen to what it says.