What was stanleys second find in holes?

In "Holes" by Louis Sachar, Stanley Yelnats' second significant find is a mysterious gold lipstick tube. After digging at Camp Green Lake, he discovers it while searching for treasure, believing it may be linked to the legendary outlaw Kissin' Kate Barlow. This find deepens the connection between Stanley's story and the camp's history, revealing more about the past of both the land and the characters involved.