ENDGAME THE CALLING is a book by James Frey and Nils Johnson-Shelton. Hidden within its pages is a real-world puzzle with a prize of $500,000 in gold coins. The gold was held on display at Caesars Palace in Las Vegas, Nevada until it was claimed on October 8, 2015.

To purchase the book, visit www.thisisendgame.com. For more information about Caesars Palace, including booking information, visit their website. To see footage from the gold unveiling, click here. For additional rules and information regarding the global puzzle hunt for the gold, visit www.endgamerules.com and check below.

NO PURCHASE NECESSARY. Contest begins 9:00 a.m. EST, October 7, 2014, and ends when the puzzle has been solved or on October 7, 2016, whichever is earlier. Unless indicated otherwise in the rules for the country in which you live, the Contest is open to ages 13 and older. Void where prohibited. Total value of prize: approximately US$500,000.00. Sponsor: Third Floor Fun, LLC, 25 Old Kings Hwy N, Ste 13, PO Box #254, Darien, CT 06820-4608. For Contest details, prize description, and Official Rules, visit www.endgamerules.com

ENDGAME™ and the ENDGAME™ oroborous hourglass logos are trademarks of Full Fathom Five, LLC. All rights reserved.