The story of a spy. The story of an assassin. The story of two mortal enemies. Our EXCLUSIVE paperback of this year's hottest action read. Alex's adventures start here! This highly anticipated prequel to the bestselling Alex Rider series is a gripping insight into the teenage life of Yassen Gregorovich. Yassen is Alex's arch-enemy: the killer who murdered his father and turned Alex into the world's first teenage spy. For years, Alex has battled with the man who tore apart his family and destroyed his childhood. But what made Yassen a killer, while Alex chose to save lives? In this sizzling new novel, Anthony Horowitz tells the story of a life stained by violence and corruption. From Yassen's training to become a deadly assassin to his first meeting with the young Alex Rider, expect the most sensational story yet...