Cap Fog 6: Rapido Clint Strikes Back. Cap Fog, #6

Nobody noticed the little Texan till the trouble began... It was a typical country-house party, though perhaps a touch more decorous than most - perhaps even a tiny bit dull. Then suddenly all hell broke loose. The host was found murdered and the house was bristling with hard men whose methods of extracting information were anything but polite. But nobody bothered about Rapido. And Rapido kept pretty much to himself.
In fact the slow-moving, slow-talking Texan seemed remarkably ill-named. That is until danger threatened, and the quiet man, transformed into a deadly fighting machine, treated the English to a showdown worthy of Gunfight at the OK Corral.