I have been reading your Recluse series since they started coming out moving on to the Imager Portfolio and Corean Chronicles I have now started with your Grand Illusion series. Throughout the other books I am able figure out the monetary system, distance, and a bit of at least the hours of the day, for that I just tie it to a 24 hour system. But what I would like to know is at least the age of the main characters. I feel when politics are involved age is a big factor. Also even thought all your books are fiction they have opened my eyes in how I look at our world and even try to see how our timeline fits in with the others.
Steffan Dekkard is roughly 27 at the beginning of Isolate, and Avraal Ysella is roughly three years older than Dekkard. The age of majority is 20 in Guldor.