1933年初春的一天深夜,一阵刺耳的电话铃声将熟睡中的杨虎城将军吵醒。来电者是陕西省政府秘书长耿寿伯,他急切地报告说:“将军,驻甘肃平凉的杨志恒旅长来电,说有两个身份不明的日本人和美国人驾驶一辆福特牌汽车已到平凉,投宿在一个叫多福寿的瑞典牧师那儿,这两个人有特务嫌疑,近日可能还要来西安……您看如何办理?” Late in the spring of 1933 one day in the middle of the night, a jarring telephone ring woke the sleeping General Yang Hucheng. The caller, Geng Shoubo, secretary general of Shaanxi Provincial Government, eagerly reported: “The general, Commander Yang Zhiheng in Pingliang, Gansu, called and said that two unidentified Japanese and Americans driving a Ford car had arrived Pingliang, lodging in a multi-blessing of the Swedish pastor there, the two men have agents suspects, may also have to Xi’an recently ... ... you see how to handle? ”