The Son of Sobek is a 2013 fantasy short story written by Rick Riordan in the paperback version of The Serpent's Shadow on May 7, 2013 and as a single e-book on June 18, 2013. On April 5, 2016, it was released as the first of three short stories in a hardcover novel entitled Demigods and Magicians: Percy and Annabeth Meet the Kanes. Source: Wikipedia (en)