The Mark of Athena (Heroes of Olympus Book 3) (Heroes of Olympus, 3) & The Throne of Fire (Kane Chronicles) Rick Riordan
The Mark of Athena (Heroes of Olympus Book 3) (Heroes of Olympus, 3)+Percy Jackson and the Titan’s Curse
The Dark Prophecy (The Trials of Apollo Book 2) (The Trials of Apollo, 2)+The Mark of Athena (Heroes of Olympus Book 3) (Heroes of Olympus, 3)
Heroes of Olympus, The, Book Five The Blood of Olympus (Heroes of Olympus, The, Book Five): 5 (The Heroes of Olympus, 5)
![Heroes of Olympus Complete Collection (5 Book Slipcase) [Paperback] Riordan, Rick](https://i2.wp.com/m.media-amazon.com/images/I/81mBkVrLbUL._SL1500_.jpg?resize=720,380&ssl=1 "Heroes of Olympus Complete Collection (5 Book Slipcase) [Paperback] Riordan, Rick")
