"The most audacious crime of my remembrance." Dyke Darrel flung down the morning paper, damp from the press, and began pacing the floor. "What is it, Dyke?" questioned the detective's sister Nell, who at that moment thrust her head into the room. Nell was a pretty girl of twenty, with midnight hair and eyes, almost in direct contrast with her brother, the famous detective, whose deeds of cunning and daring were the theme of press and people the wide West over. "An express robbery," returned Dyke, pausing in front of Nell and holding up the paper.