Once on the trail of Pisco Sour there is no shirking duty ´til the investigation comes to a natural close. Not to throw onesself into the company of Brother Cadfael, C. Auguste Dupin, Hercule Poirot, Miss Marple, Philip Marlowe, Sam Spade, Sherlock Holmes or our dear Watson. No, not at all. My comment is more that once the trail is warm and you happen to be on the South American coast that grows the grape and where is produced the clear brandy called Pisco, it is only natural to follow where curiousity leads. If that trail is littered with glass after glass of a spent favorite cocktail, multiple locations, two countries, so be it. Pictured here, Pisco Sour, Azapa Inn, Azapa Valley Northern Chile.