Valley of Gold

Deep in the Peruvian Amazon, a three-tiered waterfall guards a secret that eighteenth-century Jesuit missionaries died to protect. Museum curator Oliver Grant never expected a forgotten photographic plate to upend his quiet career—but the stone tablet it captures bears an extraordinary cipher, half Portuguese, half Quechua, that only linguist Maria Santos can unravel. Together they plunge into uncharted jungle, following cryptic landmarks toward a hidden treasury of sacred gold. A powerful collector with deep pockets and darker intentions is already on the same trail.