ful about the fact that what Valentin had found out
Flambeau had also found out; Flambeau found out everything. Also there
was nothing wonderful in the fact that when Flambeau heard of a sapphire
cross he should try to steal it; that was the most natural thing in all
natural history. And most certainly there was nothing wonderful about
the fact that Flambeau should have it all his own way with such a silly
sheep as the man with the umbrella and the parcels. He was the sort of
man whom anybody could lead on a string to the North Pole; it was not
surprising that an actor like Flambeau, dressed as another priest, could
lead him to Hampstead Heath. So far the crime seemed clear enough; and
while the detective pitied the priest for his helplessness, he almost
despised Flambeau for condescending to so gullible a victim. But when
Valentin thought of all that had happened in between, of all that had
led him to his triumph, he racked his brains for the smallest rhyme or
reason in it. What had the stealing of a blue-and-silver cross from a
priest from Essex to do with chucking soup at wall paper? What had it
to do with calling nuts oranges, or with paying for windows first and
breaking them afterwards? He had come to the end of his chase; yet
somehow he had missed the middle of it. When he failed (which was
seldom), he had usually grasped the clue, but nevertheless missed the
criminal. Here he had grasped the criminal, but still he could not grasp
the clue.

The two figures that they followed were crawling like black flies
across the huge green contour of a hill. They were evidently sunk in
conversation, and perhaps did not notice where they were going; but they
were certainly going to the wilder and more silent heights of the Heath.
As their pursuers gained on them, the latter had to use the undignified
attitudes of the deer-stalker, to crouch behind clumps of trees and
even to crawl prostrate in deep grass. By these ungainly ingenuities the
hunters even came close enough to the quarry to hear the murmur of the
discussion, but no word could be distinguished except the word "reason"
recurring frequently in a high and almost childish voice. Once over
an abrupt dip of land and a dense tangle of thickets, the detectives
actually lost the two figures they were following. They did not find the
trail again for an agonising ten minutes, and then it led round the brow
of a great dome of hill overlooking an amphitheatre of rich and desolat