All Star Western #14

"• The Black Diamond continues its journey through DC's history as it shows up in 19th century Gotham. • Someone has stolen the Black Diamond that Doctor Jekyll uses to create his infamous potion, and he's hired Jonah Hex to track it down! • While Hex follows the trail of Gothamites under the influence of a bootleg copy of the potion, Amadeus Arkham must face the mad doctor on his own."