I'm doing the quest Prophet, but I'm stuck.
After talking to the guards in Dragon Bridge, I went to the south of the bridge but there was no overturned carriage, just an arrow indicating where it should be. What am I missing?
The quest you are on (Prophet) will be slightly different depending on which side you are with.
However, in both cases, you are supposed to find a note on a dead vampire that points you towards Forebear's Hideout.
I would try heading there to see if you can skip the note finding part of the quest.
If that doesn't work, you can get around this on the PC via the console:
setstage DLC1VQ03Hunter 60
setstage DLC1VQ03Vampire 60