- is the stronghold of the corrupt wizard Saruman. Within its caverns, he breeds an army of 10,000 Uruk-hai to destroy the people of Rohan. The obsidian tower of Orthanc rises from the center of Isengard, which is one of the Two Towers of evil.
An improved version of Orcs, the Uruk-hai are bred
in Isengard by Saruman. He creates an army of 10,000
to destroy the world of men at Helm's Deep.