Alex when to the south of France with Sabrina and met Yassen. Alex knew nothing good when he was there and followed him.
In the process, he met the rich pop singer Damian Cray, en ego maniac who is actually a psychopath.
Alex when to the opening of a new game and played it. He has met Cray and found his creepy and have such an ego that he would cheat to get his way.
He couldn't leave it alone so he went to the MI6. No one believed him. Alex shared his identity with Sabrina and MI6 betrayed him by making him out to be a liar.
So he has to go at this alone. Jack believed him and they both go to find out what Cray evil plan.
In the meantime, Sabrina's father, a journalist was hurt by a terrorist attack. It was Cray. Sabrina's father was working on a story linking it to Cray and got hurt.
So Alex went into the compound to see for himself. He passed the gate, he also got some evidence that might spoil Cray plan.
A fast read with Alex Rider doing a lot of spying stuff. He was on his bike that was given to him with gadgets. Quite a lot of action and running around. The bad guy is obviously the bad guy.
The only surprise is how reluctant Yassen is unwilling to hurt Alex.
Sabrina is quite nice as an addition to the story. Only Jack knew about what Alex do and now Sabrina got involved, Alex is not so alone.
Fast read. Highly recommended.