What novel is written in series of novels?

well, i dont fully understand the question, but I know of some really good stories. Well if you like the legend of spyro series, and romance/adventure. there are three stories in all. then the books im talking about are called: The Legend of Spyro:Age of Heros books I, II, III, they are pretty long(especilly the second one) and they are a bit more.... how do I say this? Mature, than the games. It does get very disturbing around the middle of book two( and I'm not going to say what happens) but other than that, there is blood, language, vilonce, some (depending on who you ask) Inapropate content. It's very damatic and very heart touching. I don't know if this helped at all but after i read teh books I felt like I should share this with as many people as I could. Enjoy!