Computer hacker Sorcha Stone agrees to break an ancient, cryptic code only to discover that anyone who tries to solve it dies within three days of receiving it. She's the next victim unless she can unravel the code, find a priceless treasure, and defeat the shadowy, supernatural forces who protect it. She's joined on the hunt by Kyle Templeton, brother of murdered FBI agent Jeff Templeton, and together they race across the country to solve the code before they too become the prey of the Night Queen.