I like the story so far, especially the cliffhanger, however, I believe you have a few mistakes. I think dominating tribe should be switched to dominant tribe and maybe add a comma between seeking the wealth of the Scythians and had advanced. So it would read: seeking the wealth of the Scythians, had advanced. I think this will help with the flow of the story, but everyone has a different style and this may just be something you do differently from me to create a different pace or feel.