When the Ents decided to march to war, the forest awoke, angry and betrayed. With Isengard destroyed, Quickbeam is attempting to calm Fangorn and quiet it once more.
'When we marched on Isengard, the forest was awoken. It is very angry with the actions of the wizard we trusted. Too angry, I cannot calm it myself.
'Please tend the forest south-east of Wellinghall.'
Quickbeam has asked you to quiet the forest south-east of Wellinghall.