Olondrian is a fictional language created for the fantasy world of Olondria, a setting in the novel "Annihilation Aria" by Michael R. Underwood. This language is characterized by its unique phonetics and grammar, reflecting the culture and history of its speakers. In the context of the story, Olondrian serves as a means of communication among various characters, enhancing the world-building and immersing readers in the narrative. The language plays a crucial role in conveying themes of identity and connection within the diverse societies of Olondria.