The Heroes of Olympus, Book Three: The Mark of Athena: The Graphic Novel

The story follows Percy, Hazel, and Frank as they join forces with Jason, Piper, and Leo after a perilous adventure. They grapple with the uncertainty of who will fulfill the Prophecy of Seven, which is crucial for their journey to an ancient land. Their mission involves finding the enigmatic Doors of Death, adding layers of mystery and danger to their quest.