A Druid's Work — Ian Hall

Caledonia (Scotland) 83AD.
As the Romans press their advantage in lowland Scotland, Calach of the Caledonii clan must ready his forces for the imminent Roman invasion of the highlands.
His brother Uwan, a young emissary of the druid brotherhood has a plan to end the war with as little bloodshed as possible, and must embark on a dangerous voyage to the heart of Rome itself. Between the two, they hold the very future of the country in their hands.
This is where blood will be shed.
5. Druid's Work is part five of Ian Hall's Caledonii series.
Following the adventures of Calach, the eldest son of the Caledonii clan chief.
We hope you enjoy.