Atlantis by David Gibbins

A marine archaeologist uncovers evidence suggesting the myth of a lost advanced civilization may be real, triggering a globe-spanning race against ruthless rivals and shadowy forces; as he and his team follow clues in ancient ruins and decode historical puzzles, they face deadly traps, high-stakes action and moral dilemmas that force them to confront the consequences of unearthing powerful secrets about human history.

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