Banished!
When my uncle needs me most, I am banished from his side, from Rohan. He's unaware of the death of his son. He is fully in the grasp of the Wormtongue, and through that mangy git, he is trapped by Saruman. I shall see Grima dead, and his master as well.
I gather my men to me. Rohan is vast; Orcs and Dunlandings roam freely, terrorizing and killing our people. My men are loyal to the King and Rohan, and they accept my banishment as their own. Rohan will not be left defenseless. Not while I live and breathe.
"We ride North!"