@Gilgameesh So you just complete the previous quest with the escort at Dreamwarden Lurosa and there is no followup quest at all? It sounds like a bug, open a ticket ingame and have a GM help you.
Another thing to ask, do you have 300 riding, since that's required for the quest chain (you shouldn't be able to start it without 300 riding, but it's still something to consider)
Sorry I couldn't be of further assistance.