Plot:

Sophie Gray and her brother, Jack,  are able to leave the orphanage they stay in when they inherit a cottage when their Great-Uncle Lional had left them. They  find a secret passageway in the cottage that leads to Black Scar mine. There they help the poor boys who slave in the mine for the sinister Silas Morgan.

Notes:

• Translated into Dutch: Debbie Parade Album #34

Appeared:

• The Night Owls –  Bunty: #1292 (16 October 1982) – #1309 (12 February 1983)