trolls and light

[The Wizard from Milan]

Originally Posted by Landroval

There are, apparently,many races of trolls; in the "Black gate opens" chapter, there is mentioning of mountain trolls, half-trolls and hill-trolls (and there also are the Olog-hai, the great Trolls who appeared at the end of the Third Age). In letter #153 to Peter Hastings, Tolkien comments that:

To conclude, I would say that not all trolls turn to stone.

Very interesting, thanks!