1. 02. English Fiction The Heroes of Olympus #4: The house of Hades / by Riordan, Rick, Publication: New York : Scholastic , 2013 . 597 pages ; 22 cm. Date:2013 Availability: Copies available: (2), Actions:
2. 02. English Fiction The Heroes of Olympus: The blood of Olympus / by Riordan, Rick. Publication: Los Angeles ; | New York : Disney-Hyperion, 2014 . 516 p. ; 22 cm. Date:2014 Availability: Copies available: (3), Actions: