The American consul in the small but highly important city of Semlin, in Hungary, was a busy man. He was probably one of the first men in the world who knew how great was the danger of war between Austria-Hungary and the little kingdom of Servia after the assassination of the heir to the Austrian throne in the summer of 1914. Now, since the Austrian ultimatum to Servia had aroused all Europe to the peril, refugees had doubled the consul's work. All the Americans in Servia, and there had been quite a number there that summer, seemed to be pouring through Semlin. Indeed, all the Americans gathered there from all the Balkan states, and from Turkey as well, since the great trunk railway, the famous Orient line, crossed the Save river at Belgrade, and Semlin was therefore a border town, where in many cases passports had to be examined.