Well the mood is definitely not peaceful because it says they are in pain. It is not exciting because something bad is happening. It is not cheerful because they are in pain so it has to be oppressive means to be overwhelmed.<span>
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The answer is the paragraph beginning..The MS control the tops.." tops of freight trains.." ..they rob migrants riding the trains.." In order to cross the country in search for her mother, Enrique has to go up against the most dangerous sitiations.Not only has he to cope with gangsters ,but also confront thieves and officers willing to hunt migrants .Nevertheless, after the abandonment that could have caused his addiction, Enrique decides that no action is dangerous enough to keep him away from his mother any longer.