Erkenbrand's Rohirrim, commanded by Grimbold and Elfhelm, fought Saruman's forces at the Fords of Isen. However, being severely outnumbered, the Rohirrim were forced to pull back, and the shield wall they had made was broken in the process. Saruman was victorious, and the Riders of Rohan scattered and retreated. The Rider Ceorl was sent to report to Éomer about the defeat.
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