Alexander X is surely not an ordinary guy in the story as he with his friends is on a grand mission. The part before this gave an introduction of who the boy is from the inside and the motives of his tour also got explained in Alexander X. For the fans or listeners who want to come directly to this part, it would not be a very fun ride. Such people are bound to miss the most important aspects of the story and also the interlinked things would just become less understandable.
When Alexander and his friends came to the world of humans they just faced a lot of catastrophes. On certain occasions they were almost blown up to pieces by the enemies and yet they survived those massive blasts. All of it is just behind them now and Edward Savio throws another dangerous journey at his primary characters.
Elam Khai is on Alexander’s tail still and he wants to bring the boy and his team down at any rate. Alexander however is looking for his father who is hard to trace at this time. With new allies, the team has increased its power but it is still not able to match the strength of the enemy.
Wil Wheaton narrates correctly the troubles the team has to go through to get the job done. If they fail then they would have no place to go, death is after them and they cannot return to their native land without a proper solution to the problem they have trapped themselves into. Description of the catastrophic scenes is the main highlight of this second part as they have decorated the book.