The Battles of the Fords of Isen
From Tolkien Gateway
The Battles of the Fords of Isen is a chapter in Unfinished Tales which details a critical period in Rohan during the War of the Ring prior to the arrival of Gandalf, Aragorn, Legolas and Gimli in Edoras. In particular it details the first and second attacks on the critical crossing of the River Isen during which King Théoden's son, Théodred was slain, paving the way to the assault on the Hornburg: the stronghold of Rohan.
