Quicksilver (Paperback) (ISBN-13: 9798233225833)

A YOUNG MAN DISAPPEARS in the California gold country. He leaves behind a gold-flecked rock and a vial of toxic mercury. He is a misfit in the modern world, a throwback to Gold Rush days.

A hotshot venture capitalist--whose gold country is Silicon Valley--hires forensic geologists Cassie Oldfield and Walter Shaws to track his missing brother.

The geologists are hooked by the story of this lost man, this wounded soul. And they have the skills to find him. It's what they do: view a rock under the microscope and unravel a mystery. Solve a crime. Prevent a crisis. Find a missing person.

Joined by their edgy client, Cassie and Walter track the mineral clues deep into the wilderness. Their journey soon turns harrowing, plunging into the dark history of the legendary lands, into the dark past of the brothers, into a poisonous sibling feud that threatens both lives and the land.

And they are not the only ones on the hunt.

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All books in the series are complete novels and can be enjoyed in any order.