Having read "Shadow of Ararat" and not contributed any comment, I definitely have to say something about "Gate of Fire." This is a stunning, almost overwhelming sequel to "Shadow." Considering the size of the tapestry and the many threads we were given in "Shadow," "The Gate of Fire" somehow manages to weave these ever more intricately, preserving threads we had thought cut, and adding new ones to boot.
In "Gate" we are introduced to a new character in the form of Nicholas, who wields his sword Brunhilde in his service as an agent of the Empire. He soon gains a sidekick who has, shall we say, a lycanthropic aspect. Other favorite characters we had thought lost are re-introduced. Necromancy abounds-I wonder if any character we love will really stay dead for long (although one of my favorites does appear to suffer a rather permanent demise). We learn that Mohammed (one of my favorite "Shadow" characters) may really be THE Mohammed of this world (although some small details insure that he can't really be the exact analog to our world's prophet of Islam). And so the threads of Jihad are now added to the weave...
There are battles a-plenty, on land and sea, both great and small. Thomas Harlan can put you in the middle of a pitched combat like no other author I know of. Each scene is captured in slow-motion detail that creates poetry from the chaos of the melee.
What about rest of the cast? Maxian still seeks to save Rome, but a great tragedy of timing and misunderstanding leads to one of the more ambitious climaxes and cliffhangers I've read. The survivors of Palmyra seek vengeance. More of Thyatis' history is revealed, and she is given a mission that may be the last of her career. In Persia, dark forces stir as Dahak's purposes are further revealed. The list goes on and on.
Other characters are coming into their own as well-Dyrwin proves a skilled and apt pyromancer, Shirin discovers talents of her own, Krista is torn between love and loyalty. And the goals of resurrected legends become clearer...
All I can say in conclusion is this: Thomas, hurry up and finish "Storm of Heaven!"