'Percy Jackson & The Olympians' author Rick Riordan's son Haley introduces his father at his presentation for his new book 'The Mark of Athena' from his 'Heroes of Olympus' series at Temple Judea in Miami.
Haley promises not to 'spoil [the book] for anyone who hasn't read it yet' and is promptly greeted with various 'thank you's from the crowd. He introduces his father to discuss the book and takes note that some members of the audience are holding discount vouchers for the book. Haley joins his dad on tour for the first time after writing the forestory for his Percy Jackson series.
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