I'm not entirely sure as I haven't read it specifically. But generally, 'Wings of Fire' series often involves dragon characters in a fantasy world with various adventures, so perhaps this graphic novel about Clay might be centered around his story within that dragon - filled universe.
It's about the adventures of Clay in the Wings of Fire world. It shows his journey, his challenges, and how he grows as a character in a visually appealing graphic novel format.
The clay in 'Wings of Fire' graphic novel is special as it might be related to the unique world-building. It could be used by the characters in various ways, perhaps for building shelters or as part of some cultural or magical practices within the story.
You can try looking for it at your local bookstore. They usually have a section for graphic novels and might carry the 'clay wings of fire graphic novel'.