Short form: the AH rules state during the final battle, investigators "may trade items among themselves as if they were in the same location".  This does not, however, state that they are in the same location.  So, what location are they in? 

Reason for question: In a recent game using the DH expansion, Carolyn was working on the "Sealing the Beast's Power" mission as Nyarlothotep was due to wake any moment. Turns out she wasn't fast enough: during the mythos phase of the same turn that she reached the last location listed on the mission (Ye Olde Magick Shoppe) Nyarlothotep woke up.  But then I started to wonder: during the upkeep of the first phase of the final battle, could Carolyn sacrifice one sanity and reduce Nyarlothotep's toughness?  The DH rules state "the investigator may only discard or spend the listed sacrifice if she is still in the listed area during the upkeep phase".  Carolyn was at Ye Olde Magick Shoppe before Nyarlothotep woke up, but what about when the battle starts?

Analysis: a closer reading of the effect on the card ("The Ancient One's combat rating is reduced by 2 if it awakens") led me to decide that since Nyarlothotep had already awoken that it didn't matter where Carolyn was, it was too late.   But this got me thinking about other missions and whether they would be useful during the final battle. And sure enough, I quickly located "The Light Of Reason" which grants 10 clues as it's effect.  So a similar situation could arise where an investigator is at the last location with necessary sacrifice when ancient one awakes...

As far as I can tell, you aren't really in a board location, you all move to whatever field or riverbank or rubble-strewn city block that the GOO is currently rampaging through, the locations on the board essentially no longer exist as far as game mechanics go. Also, you do not actually have a true Upkeep Phase. The rulebook says this:

"At the beginning of a round of combat with an Ancient One, the investigators may refresh their cards, use any character abilities, and adjust their skill sliders as though it were the Upkeep Phase."

This gives a very specific set of things you can do as if it were an Upkeep Phase, and while it could be argued that Missions/Tasks were added after these rules were created, I think the existing rule still holds true.

Good point about the "Investigators Refresh" phase: it's not an upkeep, hence you cannot sacrifice. Just goes to show that you need to get the missions done before the GOO awakens. 

The investigators are all at the same location off board.  So they can trade items like they normal would.  They also get a full upkeep phase as has been answered in the FAQ.

But based on all this, the Mission would have failed since you did not complete it in the allotted time.  Once the GOO awakens, game over for missions.

I always played your where you are on the board when the AO wakes up. So Daisy is in 2nd Area of Dreamlands when the AO wakes she's there during the final battle...so if she had that DH madness where she losses Sanity during the Upkeep in Another World that's though luck.

Fern can not heal people unless they where in the same Area when the AO wakes. etc

But how would the investigators be able to trade items if they were all in such vastly different places?

thorgrim said:

Because the rules say you can.

MrsGamura said:

The rules also say you can only trade items if you are in the same location.

ColtsFan76 said:

They also say that during the final battle you can trade items AS IF YOU where in the same location.

MrsGamura said:

Hehe, ok, but how do you rationalize that thematically?

The Message said:

"Err, excuse me mr. Cthulhu sir. Any chance you could pass this shotgun to Michael over there? Yeah, that's the guy, the one who just threw a handful of dynamite at you. Thanks so much."

True thematically you sort of have to stretch it but nowhere does it say "all investigators teleport to the nearest area designated for fighting the AO".

I sort of view the AO just rampaging through the Town being attacked by a random investigator it happens to cross paths with.

Maybe they can trade with help from a Guardian, Bast for example has her cats carry items between investigators.

Mrs. Gamura: True thematically you sort of have to stretch it but nowhere does it say "all investigators teleport to the nearest area designated for fighting the AO". I sort of view the AO just rampaging through the Town being attacked by a random investigator it happens to cross paths with.

Mageith: This is interesting to me on what folks imagine happens during the final battle.  I never considered teleportation.  Nor did I consider that the GOO fought investigators individually (though I did make some variant rules for that).  I did consider all the investigators running, driving or flying to the location or that that GOO was so big that IT was just sort of everywhere.  But that doesn't answer the trading question unless they are throwing items to each other as the run toward the Other Worldly beastie.

Mrs. Gamura: Maybe they can trade with help from a Guardian, Bast for example has her cats carry items between investigators.

Mageith:   Has anyone ever told you have a lively imagation!  This is a good thing, of course.

Our group plays it were you cannot trade during the final battle against the ancient one.

To us,it is a combat and there is no trading during combat and it just seems VERY silly to be able to trade during this time.This is just our groups opinion.

We do have an upkeep phase like the rules state,however.

diablo666 said:

So, you have a phase where Vincent Lee or Carolyn Fern can run over, diagnose and heal another investigator, but they can't quickly palm off an item to each other?

I got it! The Epic Battle cards in Kingsport, don't some (most?) of them reference the investigators in the flavor text? They make it sound like, by whatever method, they all ended up at the same place for the final conflict.