Edgar Rice Burroughs 
Pellucidar 

The Arabs, of whom I wrote you at the end of my last letter (Innes began), and whom I thought to be enemies intent only upon murdering me, proved to be exceedingly friendly—they were searching for the very band of marauders that had threatened my existence. The huge rhamphorhynchus-like reptile that I had brought back with me from the inner world—the ugly Mahar that Hooja the Sly One had substituted for my dear Dian at the moment of my departure—filled them with wonder and with awe. Nor less so did the mighty subterranean prospector which had carried me to Pellucidar and back again, and which lay out in the desert about two miles from my camp. With their help I managed to get the unwieldy tons of its great bulk into a vertical position—the nose deep in a hole we had dug in the sand and the rest of it supported by the trunks of date-palms cut for the purpose. It was a mighty engineering job with only wild Arabs and their wilder mounts to do the work of an electric crane—but finally it was completed, and I was ready for departure.