When a daring heist in San Francisco nets sixty thousand dollars in diamonds and precious stones, the stakes soar higher than ever for Colonel David J. Crook's Great Western Detective League. With Comprehensive Insurance Company footing the bill, veteran investigators Briscoe Cane and Beau Longstreet take the lead, determined to hunt down the elusive Cajun safecracker known as Duval. But Duval isn't the only threat. Partnered with...