So: "During the Mythos Phase, each player whose investigator is in a street area must roll a die. If the result is a 1, the investigator must move to the street area that is reached by following the white arrow from his current street area. If the white arrow leads to a vortex or an area with a gate, the investigator stays in his current street area instead." Thus reads Mudslides, a Mythos card from Miskatonic Horror. The question, of course, is what exactly "during the Mythos phase" means. It's important to know when investigators are where during the Mythos phase because of moving monsters (not to speak of moving gates). The problem is...this really isn't a matter of interpretation. The text offers no indication at all about when this movement should happen. So, I suppose I would request either an official answer or an inference based on other, similar effects (if there are any).

Wow, that is terrible. Until someone swoops in with an answer, I'd play that it activates at the end of the mythos phase, following the example of Rumor cards, Ithaqua's special ability, and the Plague of Insects environment. The Lightning Storm environment activates on investigators in the street during Upkeep, and the end of the Mythos phase is as close to that as possible.

Or, you could play it literally, and have each investigator roll at whatever point during the Mythos phase they wished.

Yeah, I'm also inclined to assume the effect happens at the end, whether by analogy to other effects or just on the reasoning that this is when text-based mythos abilities happen in general...though there really isn't much of an "official" basis for this latter approach.

If one did want to find an answer in the rules, the best thing I can think of is to just let the first player determine the order of events. This may consist of either, as in Tibs' suggestion, allowing people to roll at will, or something somewhat more restrictive, such as deciding that a particular point in the mythos phase is when everyone will roll in player order

Walk said:

Sorry guys, I don't see the problem. Could you share some light? For me is rather simple: first, resolve the "gate appears"- Then place the clue token. Then resolve monsters and gates movement. Then read the special text of the Mythos & resolve it. At this moment, you check where investigators are. If in a street, roll a die, on a 1 move on white. There is no problem in investigators moving from or to a street area contaning monsters, and there is no chance for them to interfere with the "monster movement" step. Or am I missing something?

I'm inclined to say it happens at the end as well. Yes, it's a persistent effect since this is an environment card, but the time to check it is at the end of the mythos phase (as noted in the sequence of events Julia outlined).

I think the problem, Julia, is that it's an environment card. The wording's not solid enough to imply that it occurs at the Mythos Text portion of every Mythos phase.

Tibs said:

Right Tibs, sorry, I didn't notice it was an Environment. But again, I still think the most logic solution is to play as we all say. Simply because on the first iteration of the Environment, you have to do the check after monsters moved (the special text of an Environment enters play only when it's first read). And there is nothing written on the card (like "after this card enters play, at the beginning of..." or similar stuff) saying that during iterations from 2 to n you have to do differently. So, I'll play this: after the turn the card enters play, draw and resolve a complete Mythos card during the Mythos phase. Then resolve the effects of the Mudslides in play. Seems the most logic way to handle it, and there is nothing saying you have to do differently (I'm still thinking that if designers had in mind something different, they'd have written it somewhere. Mythos from MH are very detailed and scrupolously written, generally - and my guess is that Brian did a *huge* work on this).

I know, there is nothing in the wording suggesting my interpretation of the card is correct, as there is nothing saying it's wrong, so it's just a speculation, my guess on how to deal with this