I cut in the muffler and switched off our wing-lights. It was illegal but we were past all thought of that. We were both desperate; the slow prudent process of acting within the law had nothing to do with this affair. We both knew it.
Our little plane was dark, and amid the sounds of this night blizzard our muffled engine couldn't be heard.
Alan touched me. "There are his lights; see them?"
We had passed St. Anne. The hills lay ahead—a wild mountainous country stretching northward to the foot of Hudson Bay. The blizzard was roaring out of the North and we were heading into it. I saw, on what seemed like a dome-shaped hill perhaps a thousand feet above the river level, a small cluster of lights which marked Polter's property.
"Fly over it once, George," Alan said. "Low—we can chance it. And find a place to land near the walls."
We presently had it under us. I held the plane at five hundred feet, and cut our speed to the minimum of twenty miles an hour facing the gale, though it was sixty or seventy when we turned. There were a score or two of hooded ground lights. But there was little reflection aloft, and in the murk of the snowfall I felt we could escape notice.
We crossed, turned and went back in an arc following Polter's curved outer wall. We had a good view of it. A weird enough looking place, here on its lonely hilltop. No wonder the wealthy "Frank Rascor" had attained local prominence!
The whole property was irregularly circular, perhaps a mile in diameter covering the almost flat dome of the hilltop. Around it, completely enclosing it, Polter had built a stone and brick wall. A miniature of the Great Wall in China! We could see that it was fully thirty feet high with what evidently were naked high-voltage wires protecting its top. There were half a dozen little gates, securely barred, with doubtless a guard at each of them.
Within the walls there were several buildings: a few small stone houses suggesting workmen's dwellings; an oblong stone structure with smoke funnels which looked like a smelter; a huge domelike spread of translucent glass over what might have been the top of a mineshaft. It looked more like the dome of an observatory—an inverted bowl fully a hundred feet wide and equally as high, set upon the ground. What did it cover?
And there was Polter's residence—a castlelike brick and stone building with a tower not unlike a miniature of the Chateau Frontenac. We saw a stone corridor on the ground connecting the lower floor of the castle with the dome, which lay about a hundred feet to one side.