In the time of your grandparents' grandparents' grandparents, when "the good old days" hadn't even been invented, Trog wanted to make the Journey. But in the Invisibles tribe only boys made the Journey. And Trog was a girl.

Nos tempos dos avós dos avós dos seus avós, quando ainda não haviam inventado os “bons dias”, Trog quis fazer a Viagem. Mas, na tribo dos Invisíveis, a Viagem só era feita por meninos. E Trog era menina.

Die Geschichte nahm ihren Anfang, als sich die Städte immer mehr ausbreiteten, auf Kosten von Wald und Natur, und die Umweltverschmutzung Himmel und Meere zunehmend belastete.

This story begins when the cities began to grow at the cost of forests and jungles, and when pollution began to fill the skies and the oceans.