About This Book
Perry Wilcox and Dr. Roderick Murgatroyd investigate an aerially spotted, mile‑wide triangular mound and, through secret drilling, unearth a prehistoric lead alloy and buried fortifications placed long before humans existed. Their work draws the unwelcome attention of wealthy industrialist Lyman Kerwin, and the explorers descend into subterranean passages that reveal remnants of an advanced ancient civilization, including mechanized defenses, crawling machines, and a colossal gun. The plot blends scientific inquiry and adventure as the team probes dangerous ruins and confronts technological relics that imply a sophisticated, long‑vanished culture.
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