Undetected
Researcher Gina Gray is on the verge of a breakthrough in sonar technology, but she fears that her impending discovery will only put the lives of those she loves in greater danger.
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A romance between a Navy submarine commander and a brilliant ocean science researcher is challenged by his long-term covert missions and a discovery that has a potential to transform submarine warfare. By the best-selling author of Full Disclosure. Simultaneous.
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