Obviously the biggest foreshadowing in the book is Yassen Gregorovich's final words of " Go to Venice, find Scorpia and you will find your destiny." When Alex first heard this he didn't exactly know what it meant, but he decided to go to Venice anyway. He ended up finding SCORPIA and almost getting killed by them. This isn't what Yassen intended to happen, but it was only because they didn't know who he was. Once SCORPIA finds out that they almost killed Alex Rider, they are ecstatic to have him find them once more. Alex's temperate manner throughout these events foreshadows another event though. When Alex is training, he has an evaluation in which one of the doctors tells Julia Rothman that Alex is not physiologically ready to kill someone. This leads to his first mission on the bad side. I'm guessing he won't kill anyone because of how he has felt about death in this book and the previous ones.