Skeleton Key Horowitz, Anthony

Alex Rider didn't ask to be a teenage spy, but MI6 had other plans. Now he's on assignment in Cuba, investigating a Russian general with a private island and a very suspicious island fortress. What starts as surveillance quickly escalates into something far more sinister — a plot involving biological weapons and a grudge that could kill millions. Horowitz keeps the pace relentless, mixing Bond-style gadgets with genuine stakes. Alex is resourceful and clever, but he's also sixteen and in way over his head, which makes every close call land harder. The third entry in the Alex Rider series cements the formula that made this one of the defining spy thrillers for young readers in the 2000s. Perfect for fans of fast-paced espionage, reluctant heroes, and stories where the villain's lair actually lives up to the hype.