As part of the "Prophet" quest:
you are asked to visit Dragon Bridge to ask about a Moth Priest. Several of the NPCs have conversation options where they advise you to "speak to one of the guards".
There are 2 or 3 guards in Dragon Bridge (Stormcloak soldiers in my case) - but one is dead, having died in a battle with members of the Dawnguard. If I walk past this dead guard, away from the town - the "target" marker appears on my display at the top - indicating that the goal is visible - if I move back towards Dragon Bridge and the dead guard, it disappears.
I think the dead guard is the only one able to tell me the info.
Any way I can recycle this? Will the guard get refreshed after a period of time? I can't continue with the quest as no other NPC in the entire place has any info