Aloysius Pendergast is a fictional character created by authors Douglas Preston and Lincoln Child. He is a highly intelligent and eccentric FBI Special Agent known for his unique investigative methods and keen analytical skills. Pendergast often operates outside conventional law enforcement protocols, relying on his extensive knowledge of criminology and psychology. The character is featured in a series of novels, including titles like Relic and Cabinet of Curiosities. Pendergast is characterized by his refined tastes, distinctive appearance, and a penchant for the unusual, making him a memorable figure in contemporary thriller literature.