Digg is a famous digger who leaves notes for others to find on their own adventures. He is often referred to as "Uncle Digg".

Digg's notes can be found throughout the Shala-kun underground, telling of a treasure that exists in the caves besides the Aurora Stones. This treasure is called the Elixir of Youth. It turns out that Digg did not find the secret of this mystery before he died, and his spirit remained within the caves...