This is a tricky, subtle one, so a bit belated.
Firstly, several vague references to the Darkness and Great Darkness, presumably relating to Morgoth's original appearance in Middle-earth rather than his return from captivity.
His song mentions the ancient forests (by various names) of Nan-Tathren, Ossiriand, Neldoreth, Dorthonion, and of course Fangorn itself.
Firstly, several vague references to the Darkness and Great Darkness, presumably relating to Morgoth's original appearance in Middle-earth rather than his return from captivity.
His song mentions the ancient forests (by various names) of Nan-Tathren, Ossiriand, Neldoreth, Dorthonion, and of course Fangorn itself.

