In a part of the book, some sailors and looters try to invade the Amazon's land and they retaliate violentely: 

"We are the Amazons" said Myrina."We are the killers of beasts and men. Wild ourselves, we inhabit the wild places. Freedom courses in our blood, and death whispers at the tip of our arrows. We fear nothing, fear runs from us. Try to stop us, and you will feel our rage."

 It is common knowledge that when people come into contact, cultures are exchanged and absorbed. Historically, many first contacts between peoples ended up in spilled blood and exploitation, so the impact was extremely negative. Today, the context is different, but even on a smaller scale, the negative impacts still happen.

 When people think "I'm on vacation, so I have no responsabilities because I'm not ate home", is huge problem in tourism. Many tourists feel like, because they're on vacation, they're "on vacation about their resposabilities" too, and that, for not being home, they don't need to be careful with the place they're visiting or temporarily inhabiting.

  Mass-tourism¹ is a great amplifier of this behavior. Among the many problems that this type of behavior causes, the worst of them is the how discontent the local inhabitants start to be, who begin to see tourism as a villain of their cities and their lives. Their once clean streets, are now dirty; Their housing once with normal prices, are now overpriced; Their places of leisure and coziness, now give way to places that produce a lot of garbage and noise, among other things.What was to be a factor of local economic growth, generator of jobs, become companies that don't invest locally and, or don't hire locals, or hire, but for small jobs and that pay little, thus generating a species of character decline and professional devaluation.   Mendonça (2001) talk about it, explaining that:

"the avalanche of tourists and vacationers that emerge in the seasons alters or destroys local cultures, eliminating with them the possibility of carrying out any activity integrated to that specific natural environment. In the formation of tourist centers, the native population is often far from their place of residence and activity of origin. This comes in many different forms, whether physically, by selling their land and moving elsewhere, whether by participating informally or marginally in the economy, by neglecting their own cultural values ​​and by subjecting themselves to new ones brought by tourists." 

  Today, there's also a kind of tourist that want to get away of the agency's planned trips and prefer to live what the locals live, to have the "real experience" that the region can provide. However, this type of tourism has also become more and more popular, making the living places of the locals always crowded and difficult to live in. The agencies take advantage of this and begin to arrange a "natural" image to their planned and stereotyped tours, taking everything that was still really natural in these places. These incidents generate anger in the residents, and: 

"they become an annoying factor to the native community, making them feel violated in the intimacy of her daily life. They lose their freedom of movement in their own environment. This mismatch worsens in the touristic seasons and on the occasion of special events that provoke great human concentrations. There may be confrontations with local customs, creating such forms of sophistication in the presentation of activities, which will particularly lose their origins, the typical, the natural. Most of the time it's precisely this local flavor that is the element of greatest catalytic power. (Sarto, 1977:30 apud Coriolano, 2001: 97)."  

  Very serious cases of places where residents feel like they have been so much hurt by the negative impacts of tourism that they already brand that tourists are not welcome, have been increasingly registered. Barcelona, in ​​Spain, is one of these most famous cases. Strikes and rallies are made, posters with messages of "tourists, go home" are hung and residents are keen to demonstrate that tourists are not seen with good eyes in these places.