Description
A dull murmur, like distant thunder, reached their ears and brought Biggles to his feet with a rush. "What is it?" he gasped. At the first sound, Dickpa had leapt for the flashlight. "Quick," he snapped, as the floor of the cave sagged sickeningly. "Get out — it's an earthquake! Ah — stop!" he screamed.
A visit to Biggles' uncle, Dickpa, lands Biggles, Algy, and mechanic Smyth in a dangerous adventure in search of an ancient Inca treasure hoard.