The Silver Branch by Rosemary Sutcliff
VINTAGE PAPERBACK  FARRAR STRAUS & GIROUX
Book is excellent, with nice evenly tanned pages. Trace shelf wear and small corner crease to cover.
Violence and unrest are sweeping through Roman Britain. Justin and Flavius find themselves caught up in the middle of it all when they discover a plot to overthrow the Emperor. In fear for their lives they gather together a tattered band of men and lead them into the thick of battle, to defend the honour of Rome. But will they be in time to save the Emperor?