Marcos is obsessed with the book series "Dragon Races". However, he can't find the final installment of the series anywhere. For some unknown reason, the author J. T. Lekunberri hasn't published the book. The boy will have to go in search of the writer in order to find out why he stopped writing and help him to pick up the story where he left off. An exciting story in which the limits of reality and fantasy become intertwined and give way to a friendship between a writer and a reader that will go beyond the pages of the books that bind them.