Eight days to death, is how I read this one. I like how the results of things are open for interpretation.
I understand the need to separate rounds into two phases, but with the world bathed in eternal night, would it have been "better" to just have an option of the two things: 1) you can Travel and just lose Heat and Light or 2) you can attempt to Pillage or just Scavenge based on the die roll, but no travelling. That way the chances of rolling 1 while scavenging increases as the Pilgrims dilly-dally in the same spot.
Which brings me to ask this: what is the "evens or odds"? Is this the total number of resources provided? Like if only one person provides resources, then it's Heat? If so, that's a nicely strategic way of rationing resources amongst the players.
Very interesting!