Dr. Philip Mercer is a fictional character created by American author Jack Du Brul who is featured in a series of techno-thriller novels. Mercer is a geologist who is helping to protect the world from various threats.

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Jack Du Brul is an American author of techno-thriller novels. Jack’s solo novels feature his character, Dr. Philip Mercer – a mining engineer and geologist. Du Brul is also the co-author of Clive Cussler‘s The Oregon Files, starting with Dark Watch.

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