There is a possibility. Many popular books are turned into graphic novels these days. 'The Mark of Athena' has a rich story with interesting characters and a complex plot. If it were to be made into a graphic novel, the artists could really bring the world and the characters to life in a new and exciting way. But it depends on the publishers and the rights holders. They need to see the market potential and weigh the costs and benefits. Maybe if there is enough demand from fans, it could become a reality.
Yes. However, availability might vary. Sometimes it could be out of stock or only available in certain editions. You might have better luck searching on specific book-selling websites or at local comic conventions.
I'm not entirely sure as I haven't read it in full. But generally, it might be about the adventures related to Athena. It could involve characters who are on a quest that has something to do with the mark of Athena, perhaps a symbol that holds great power or significance in the story's world.
Typically in stories like the 'Mark of Athena Graphic Novel', the main characters could be descendants of the Greek gods. They would have unique powers and skills. For example, there might be a character like Percy Jackson, who has powers related to the sea god Poseidon. There could also be other characters with powers from different gods, and they would all come together for a common purpose, like saving the world from a great threat or fulfilling a prophecy.
In the 'Mark of Athena Graphic Novel', the story probably revolves around a group of heroes. They could be on a mission to save the world or retrieve an important artifact. There might be battles against monsters and interactions with gods or goddesses from Greek mythology. For example, they may have to use their wits and powers to overcome obstacles set by the deities.