As he emerged from the big front yard of his home, he chanced to look toward town, and observed an orange-colored taxicab standing near the first crossing.  This would not have especially attracted Bob's attention, except for the fact that a man sitting on the front seat was just at that moment pointing his index finger toward the Giddings' place, and a slender-looking man just descending from the cab was looking that way and nodding his head.