action adventure adventureandadventurers amerikanischesenglisch arabiclanguagematerials astronauts campamentos camps changpianxiaoshuo children'sfiction diving fantasy ficciónjuvenil fiction friendship general juvenilefiction largetypebooks mars(planet) newyorktimesbestseller nouvelles novela nyt:hardcover-fiction=2014-03-02 readers readinglevel-grade10 readinglevel-grade11 readinglevel-grade12 readinglevel-grade7 readinglevel-grade8 readinglevel-grade9 romans science-fiction sciencecamps sciencefiction spaceflight spaceflighttraining spanishlanguagematerials supervivencia survival survivalskills suspense teamsports thriller zambullidas