Unguided, our vessel careened wildly in its mad flight, rising ever nearer the rocks above. It took but an instant, however, for me to regain the levers, and with the roof barely fifty feet above I turned her nose once more into the horizontal plane and headed her again for the black mouth of the shaft.
The collision had retarded our progress and now a hundred swift scouts were close upon us. Xodar had told me that ascending the shaft by virtue of our repulsive rays alone would give our enemies their best chance to overtake us, since our propellers would be idle and in rising we would be outclassed by many of our pursuers. The swifter craft are seldom equipped with large buoyancy tanks, since the added bulk of them tends to reduce a vessel's speed.
As many boats were now quite close to us it was inevitable that we would be quickly overhauled in the shaft, and captured or killed in short order.