Eleven Possible Cases w/Direct link technology (A Detective Classic)

Overlook was crude and temporary. The inhabitants were making a roadbed for a new railway at a spot where the job was extraordinary, requiring an uncommonly large proportion of brain to brawn in the work. Those who were mental laborers in the remarkable feat of engineering, or were at least bosses of the physical toil, were the ones who had errands at the telegraphic shed, and for whom Mary sent and received messages over the wires. The isolated colony of workers was one hundred miles deep in a wilderness of mountain and forest, but not as many seconds distant, measured by the time necessary for electrical communication from the construction company's headquarters in a great city.