The 52ndPaperback - 2015
"On the tip of the Yucatan peninsula, the immortal Castillo family gathers in Tulum. Weary and haunted, they receive the names of fifty-two human sacrifices chosen once every fifty-two years for the Underworld, a tradition thought to have disappeared with the fall of the Aztec and Mayan empires."--Page 4 of cover.
Publisher: Minneapolis, Minnesota : Wise Ink, 
Characteristics: viii, 464 pages ; 22 cm
Alternative Title: Fifty-second