Sue Morgan gets Hoppy and his friends to join their expedition looking for Indian artifacts. Expedition leader Atwood makes a deal with nearby cattle rustler Morgan to loot the Indian treasures instead and sell them. Hoppy is on to their plan and pretending to leave follows them. Not only is he outnumbered by Morgan's men, but California has himself about to be sacrificed in an Indian ritual.
23 May 1947
|William Boyd||...||Hopalong Cassidy|
|Andy Clyde||...||California Carlson|
|Rand Brooks||...||Lucky Jenkins|
|Fritz Leiber||...||Chief Xeoli|
|Douglas Evans||...||Dr. Grimes Atwood|