A woman's grandfather murdered in cold blood. A treasure map and a stolen journal. A city hidden beneath the Grand Canyon. When Tom Logan and Kate Lockhart stumble upon a man with a knife lodged in his back, their honeymoon vacation becomes a journey into the world beneath the Grand Canyon and a search for a hidden city of untold riches. The man's granddaughter, who is in possession of a journal stolen from the Smithsonian Institute that dates back to the 1850's, finds a missing page in her grandfather's attic that leads her to the Grand Canyon. With a mysterious treasure hunter from the Australian Outback hunting them down, Tom and Kate must help the woman find the legendary city that's rumored to be filled with Aztec gold. Book 2 in the Tom Logan & Kate Lockhart Adventure Series.