I’ve read the entire Warlord series and I’m starting the Saxon now. That being said, if you could write about the heptarchy of England circa 620s to 630s it would fill in the two to some extent. The pagan Mercians, the Welsh still exerting influence, Wessex slowly expanding. Racial lines were evident but fading, as in the Saxons had kingdoms but some would still fly their banner under an Angle king. You’re the only person who can illustrate this epic period of time in Britain’s history!
Sharpe Williams