Book 3, Chapter 5, Part III of III: Might of the Elves

After defeating the Uruk Drukordh, Gildor told you that the Elves of Lin Giliath shall come to the Council of Esteldín.

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Stage 1

'With the Uruk Drukordh slain, the threat of the Orcs is lessened, and I am free to come to the Council of Esteldín.

'You should bring word to Halbarad that we shall attend him, and that we will arrive soon!

'Your brave deeds may yet prove a strong foundation for our defences.'

Halbarad can be found in Esteldín.

Gildor told you to bring word to Halbarad that the Elves have agreed to come to the Council of Esteldín.