The porter was squatting on a stool, polishing an amazing pile of shoes.

Martin longed for his encouraging companionship, and ventured, “Warm night.”

“Uh-huh,” said the porter.

Martin curled on the chill leather seat of the smoking compartment, profoundly studying a brass wash-bowl. He was conscious that the porter was disapproving, but he had comfort in calculating that the man must make this run thrice a week, tens of thousand of miles yearly, apparently without being killed, and there might be a chance of their lasting till morning.

He smoked till his tongue was raw and till, fortified by the calmness of the porter, he laughed at the imaginary catastrophes. He staggered sleepily to his berth.

Instantly he was tense again, and he lay awake till dawn.

For four days he tramped, swam in cold brooks, slept under trees or in straw stacks, and came back (but by day) with enough reserve of energy to support him till his experiment should have turned from overwhelming glory into sane and entertaining routine.

CHAPTER XXIX

When the work on the X Principle had gone on for six weeks, the Institute staff suspected that something was occurring, and they hinted to Martin that he needed their several assistances. He avoided them. He did not desire to be caught in any of the log-rolling factions, though for Terry Wickett, still in France, and for Terry’s rough compulsion to honesty he was sometimes lonely.

How the Director first heard that Martin was finding gold is not known.