Tolkien never actually told us what Treebeard's 'real' name was, so I made one up in the style of the Entish words we do know.
It's also not exactly canon that the Ents helped guard Cuiviénen, but it's the sort of thing they're good at. Also Tolkien hadn't actually invented Ents yet when he wrote the Silmarillion, so they have to be retconned in...
Part 58: Mopping up
Next time: Part 59: Green shoots
Chibis by tektek.org