Treebeard is the 4th chapter in the first book of The Two Towers (novel)

• IV - Treebeard - Merry and Pippin meet Treebeard the Ent, who calls an Entmoot, a gathering of Ents in Derndingle. The hobbits meet another ent, Quickbeam. The ents decide at the entmoot after three days, to attack Isengard.