The Treason of Isengard is a third-person action/adventure based on the epic fantasy world of J.R.R Tolkien's The Lord of the Rings trilogy.. The quest to destroy the One Ring continues in the second installment in The Lord of the Rings saga. What was once a quest for a Fellowship of nine is now an epic struggle between the races of Men, Elves, Dwarves, and Orcs. Players influence the tides of war as they control multiple characters in their epic confrontation with evil... Check out six screenshots featuring Treebeard. Take 'em or leaf 'em.