The Traitors' Pit: (Wulfgar 2) by V.M. Whitworth
Young cleric, Wulfgar, does not believe that his older brother is capable of treason. And yet Wystan stand accused of plotting to overthrow King Edward and place his cousin, Seriol on the throne. It is clear that Seiriol and the Archbishop plan to lead an army to conquer Leicester. The Archbishop is an empire-builder, and Seiriol is ruthless. Together, they appear unstoppable. With the evading army continually gathering force, can Wulfgar unearth the evidence to exonerate his brother before he suffers a traitor's death...?