Alex Rider is a fictional character created by British author Anthony Horowitz. He is a teenage spy who works for the British Secret Service, often taking on dangerous missions that involve espionage, high-tech gadgets, and international intrigue. The series begins with Alex discovering his uncle's secret life as a spy after his uncle's mysterious death. The Alex Rider series includes multiple books, starting with "Stormbreaker," and has gained popularity among young readers. The stories blend action, adventure, and suspense, showcasing Alex's intelligence and resourcefulness as he navigates various challenges while trying to maintain a normal teenage life.