Mirror, Mirror II - Season 1 Episode 10 The Artist
Overview: Lewis is a prospector who hasn't had any luck. After trading his claim for a pocket knife he now has nothing and now spends his time painting the walls of a sea cave with his story of life. Fergus who has not cared for anything since gold fever hit him tries to reason with Lewis and discovers that there is more to life than gold. Back in the present day the kids are at an art gallery and see a painting by none other than Lewis Bast of an unknown girl, who was Constance.