Entry 7: Skeleton Key by Anthony Horowitz

In the 3rd Alex Rider book, Alex is invited by MI6 and the CIA to go on a vacation to Cayo Esqueleto (Skeleton Key), an island off the coast of Cuba. They promise him two weeks of relax and he only has to get two CIA agents on the island for a mission. after their arrival, Alex discovers some facts about the mission: the CIA agents are looking for a nuclear bomb. A Russian general living on Skeleton Key, Alexei Sarov, bought some weapons-grade uranium from a salesman. The CIA agents try to enter his hiding, but they are killed and Alex is taken prisoner. He finds out that Sarov wants to adopt him, since Alex is similar to his son, who died young. After he's captured, the Russian president arrives at Sarov's palace for a vacation. Sarov soon reveals his plans: set off the bomb in a nuclear submarine shipyard in Murmansk (Russia)and reunite the USSR. Alex is taken to the submarine yard with Sarov and his men.

At the airport, Alex activates a stun grenade and attempts to escape. But a security guard stops him from calling the police. Sarov's men kill the guard and they proceed. Luckily, when the guard grabbed the phone, he didn't hang up. The police believed Alex's call was a hoax, but they alerted MI6 when they heard the guard screaming. MI6 alerted the Russian authorities and they pulled together an army to take the submarine yard. While the soldiers were fighting Sarov's men, Alex throws the keycard away, rendering the nuclear bomb useless. After Alex says he would rather die than be adopted by Sarov, he shoots himself in front of Alex.