Alex became a lot more alert and aware through this book when he realized what danger he was in. He didn't think it was that big at the beginning and that there would be anything wrong with Herod Sayle but as he investigated he saw it was big stuff. He never had any prior experience and I think he did a great job of being aware and careful with every move. I think that Alan Blunt also changed because he thought that Alex would not do very well and he was basically just throwing him out on a suicide mission. He realized he should have faith in Alex and I think that this faith will let Alex go on highly dangerous missions in the future. I don't blame him for not having faith in an inexperienced 14 year old but after he saves all of England's students, I would reconsider that.
The problem was that Britain school kids would all be killed if Herod Sayle proceeded with his plan. But Alex was put in as a spy with many high-tech gadgets to see if Herod Sayle was up to something and he was. Alex had to get more information and put the evil man to a stop before he causes major destruction. He is very smart and he is not afraid. He used his curiosity to his advantage going wherever it took him. He went into caves even and that was how he found out the plans. He was caught spying on the secret places in Sayle Enterprises and he was going to be killed then escaped. He jumped off a plane and landed where the killing of the children would begin and shot Herod Sayle. It wasn't over yet. Herod disappeared and later came to MI6 ( the intelligence agency Alex was working for) and captured Alex. The most feared killer in the mission Yassen Gregorovich unexpectedly came and shot Herod to death. Alex didn't dare try and kill Yassen. They left each other peacefully and Alex returned to his normal life.