Charismatic Jon Schueler (1916 – 1992), born in Milwaukee, with Swiss/German antecedents, lived for years at Mallaig on the West Coast of the Scottish Highlands. An important member of the NYC Abstract Expressionists in the 1950s, the intriguing question, as his friend and fellow artist Ken Dingwall posed, is ‘what the devil was Jon doing in Scotland?’ I went to Mallaig to find out.