1. 02. English Fiction The Heroes of Olympus #3: The mark of Athena / by Riordan, Rick. Publication: . 586 pages, 64 unnumbered pages : , "Inside never-before-seen short story. Annabeth Chase meets Sadie Kane"--Cover. | Includes author's short story: The staff of Serapis : an Annabeth Chase/Sadie Kane adventure. 20 cm. Availability: Copies available: (1), Actions:
2. 02. English Fiction The house of Hades / by Riordan, Rick, Publication: . 597, [54] unnumbered pages ; , Bonus content included: Preview of The Blood of Olympus. 20 cm. Availability: Copies available: (1), Actions:
3. The heroes of Olympus. the graphic novel / by Riordan, Rick, Publication: . 1 volume (unpaged) : 23 cm. Availability: Copies available: (1), Actions: