How do I start Embers questline?

Hi there, new player here. I apologize in advance if I posted in the wrong forum, I don’t write on forums much. Hopefully I can get better at it.

With that being said. I’ve been playing for about two-three weeks and recently purchased Dragonflight. I am now level 70, and I’m just wondering how can I start the campaign for Embers? It shows up on the campaign under my quest log, but that is it. Is there any prerequisites to starting this?

Thanks in advance,

Avon