In the left wing of the gate proper a small door had been cut for pedestrian use. It had been painted a dark green, the knocker and door-plate being of brass. Constans by dint of rubbing away some of the verdigris succeeded in making out the inscription. It read:
Arcadia House
Richard van Duyne
1803
Actuated by a daring impulse he lifted the knocker and let it fall. The rat-tat sounded hollowly, but there was no response. Constans looked longingly at the wall, but without some special appliance, such as a notched pole or grappling-hooks, it was unscalable. There were no signs of life to be seen in or about the house. Not a light in any of the windows or curl of smoke from a chimney-pot. The wheel-tracks leading through the gateway had already become obliterated by the rapidly falling snow; the silence was profound. The whole adventure seemed to be vanishing into thin air; the wheel-tracks having led him into this land of folly had disappeared after the accustomed fashion of those mocking spirits whose delight is in leading the unwary traveller astray. Involuntarily, Constans glanced over his shoulder; he almost expected to see some shadowy bulk stealing up behind him preparing to make its spring.
Yet as he retraced his steps to the temple of the Shining One he resolved that he would pay another visit to Arcadia House. "To-morrow," thought Constans, "I may find some one to answer the door."
XV
A MAN AND A MAID
In spite of that brave "to-morrow," it was several days before Constans found opportunity to revisit Arcadia House. A misstep upon an icy flag-stone had resulted in a sprained ankle, and for that there was no remedy but patience.
Yet the time was not wasted. Here was a fascinating problem to be solved, and, yielding to importunity, Prosper was finally induced to talk freely of the sacred mysteries of the Shining One. He was even persuaded to put the machinery in operation, outside the canonical hours, in order that Constans might test the theories derived from his books. One experiment interested them greatly.
Constans took a "live" wire and allowed its free end to hang in close proximity to a leaden water-pipe. Then he placed a piece of oily rag near by and saw it answer his expectation by bursting into flame. He looked triumphantly around at Prosper, to whom he had previously explained the nature of the experiment.
"Would the fire descend wherever the wire led?" demanded the priest.