Abner Perry is a fictional character from the science fiction novel "At the Earth's Core," written by Edgar Rice Burroughs. He is an American inventor and a close friend of the protagonist, David Innes. Together, they embark on an adventure to explore a hidden world beneath the Earth's surface. In the story, Abner Perry is known for his intelligence and resourcefulness. He creates a drilling machine that allows them to reach the subterranean realm of Pellucidar, where they encounter prehistoric creatures and various challenges. His character adds depth to the narrative, showcasing themes of friendship and exploration.