All-Star Western: The Black Diamond Probability — DC Comics
Issue: #3
In these stories from issues #0 and 13-16, Someone has stolen the Black Diamond that Doctor Jekyll uses to create his infamous potion! Now it's up to Jonah Hex to track it down! Plus: Find out how Hex got his famous scars!
Creators: Justin Norman, Jimmy Palmiotti, Justin Gray, Staz Johnson, Ariel Olivetti, Phil Winslade
Characters: Dr. Jekyll/Mr. Hyde, Jonah Hex, Tomahawk, George Washington, Amadeus Arkham, Elizabeth Arkham, Reginald Frosythe, Woodson Hex, Tallulah Black, Barbary Ghost