Obsidian
The Obsidian series is a successful book series of epic fantasy and fiction novels. It was written by a famous American author, Mercedes Lackey, in collaboration with another popular writer named James Mallory. This series is comprised of a total of 8 books, which were released between the years 2003 and 2012. In some places of its publishing, the series is also known as the Obsidian Mountain series or the Obsidian Universe series. The first three books of this series are penned by Mercedes Lackey alone. For the purpose writing the next three novels, she collaborated with James Mallory. These three books in which James Mallory gave his contribution form a separate series called the Eduring Flame series. It is also called as the Obsidian Trilogy series. Also, the last two books are included in another independent series entitled The Dragon Prophecy series. In all the books of the series, authors Lackey and Mallory have depicted the chief protagonists as Kellen Tavadon and Jermayan. In addition to these primary characters, a number of other characters are also mentioned, who keep recurring every now and then, and play important secondary roles. All the novels of this series are very popular and have successfully reached out to numerous readers from all parts of the world.