Doc Leap at Mayan

Into the soaking night had permeated a low, mellow, trilling sound like the song of some exotic bird. It seemed to emanate from underfoot, overhead, to the sides, everywhere--and nowhere. The stocky man was bewildered. The sound was startling, but not awesome.

Doc was telling his men to beware. There might be more of the enemy about than this one fellow.

The stocky man half turned, searching the darkness. He took a step toward a big, double-barreled elephant rifle that leaned against a pile of scrap wood near him. It was of huge caliber, that rifle, fitted with telescopic sights. The man's hand started to close over the gun. And Doc had him! Doc's leap was more expert even than the lunge of a jungle prowler, for the victim gave not even a single bleat before he was pinned, helpless in arms that banded him like steel, and a hand that cut off his wind as though his throat had been poured full of lead.

- The Man of Bronze (1933) Chapter 4