? (blue and white on back cover page only, see notes)
Tom Mix; Tony; Zeke Ezzard; Matt Collinge; Don Lewis; Fred Clarke
Tom Mix is called in by Matt Collinge to get to the bottom of how gold dust keeps getting stolen right under their noses while being transported to the essayer's office. When Tom arrives he finds a posse, led by Zeke Ezzard, about to hang on Lewis, the driver of the stagecoach taking the gold dust to the essayer's office. Tom stops the hanging and sets about finding out how the gold dust is stolen and who is stealing it.