The situation occurred right after the staging step.
1. Before resolving questing Player 1 triggers Asfaloth clearing Methredas (triggers Search).
2. Player 2 reveals Mugash's Guard as a part of his search.
3. Player 3 triggers Ride them Down and chooses Mugash's Guard.
4.1 The players move to quest resolution.
This is where it got confusing to us. At this juncture, we have determined that our willpower is > threat. It is sufficient to clear the active location AND kill Mugash's Guard from the effect of Ride Them Down. However, we are uncertain as to exactly how things should resolve...
4.2 We must trigger the response on Searching for Mugash before resolving Ride Them Down
Option 1: You cancel all progress that would be placed on the stage, therefore the progress still clears the active location because it still may be placed there, but the overflow does not kill Mugash's Guard because no progress could be placed on the current quest.
Option 2: You cancel all progress that would be placed on the stage, therefore the progress does not clear the active location because zero progress is being placed.
4.3 You can wait to trigger the response on Searching for Mugash until after progress/damage is placed from Ride Them Down.
Option 1: You place progress on the active location and then place overflow onto Mugash's Guard killing it. Players trigger the response on Searching for Mugash since they have quested successfully "canceling all (zero in this case since it all went to damage from Ride Them Down as developers have said all can include zero) progress that would be placed on this stage".
The reason I suppose for the confusion is that the rulebook states "If the willpower is higher [than the threat], the players have successfully quested, and they make progress on the quest." It seems that this is one simultaneous resolution since they use "and" instead of "then" so there is no clear distinction as to whether you must use the response on the Searching for Mugash quest card before or after you make progress. Perhaps it is a choice.
My interpretation is that you must trigger the response on Searching for Mugash first (if you wanted to), which would negate Ride them Down, but I not think it is so clear and I can see arguments for various interpretations.
CARD REFERENCES
Ride Them Down - Quest Action : Choose a non-unique enemy in the staging area. Until the end of the phase, progress that would be placed on the quest from questing successfully is instead assigned as damage to the chosen enemy. (Progress must still be placed on any active location first.)
Searching for Mugash - Time 2. Forced: After the last time counter is removed for this stage, shuffle the discard pile into the encounter deck and reveal 2 encounter cards per player. Place 2 time counters on this stage.
Response: After questing successfully, cancel all progress that would be placed on this stage. Then, place 1 time counter on this stage. Or, if Mugash is in play, advance to stage 3.
Search X Keyword (Note this is paraphrased) - Look at the top X cards of your search deck. Add any enemies to the staging area. The player may take one of the cards into his hand. Discard the rest.
EDIT - I think I was able to fine the answer in a different thread when I excluded Ride Them Down from the situation. I find it strange he (Caleb) referred to it as a Forced Effect and not a Response, but I do not believe that impacts the decision as he mentions that questing successfully and placement of progress are two separate game instances.
Edited by cmabr002Here's the official ruling from Caleb:
The Forced effect on stage 2b triggers after “questing successfully” which actually occurs before any progress is placed. Placing progress is only done after determining whether or not the players have quested successfully. That’s why it goes on to say “cancel all progress that would be placed on this stage…” (emphasis added). Since the Searches X keyword only triggers when a location is explored (and that only happens after placing progress on it), it is not possible to bring Mugash into play and advance to stage 3a in the same quest phase (unless you use a player card effect to explore a location before resolving the quest).