Ahoy there mateys! I don't know where I heard about this book either.  The version I bought contained the first book and the story "Psiren."  The book follows Cat, an orphan, as he develops his telepathic powers and learns to trust other people.  It is a strange sci-fi that is classified as a young adult book.  I enjoyed the character of Cat very much.  The plot was interesting and the world building felt a bit light.  Cat carries the story because I wanted to know what happened to him.  I did not like the story "Psiren" at all even if I enjoyed reading more about Cat.  I am not sure if I will read the next two books in the series.  Arrr!