I've been discussing this on BGG, without much resolution.
Our group recently tried to run through Frozen Spire. I kept both Dash cards in my hand from part one. (Victory in part one went to the OL, but that isn't a terribly large impact on part two.)
We played through part two four times (with varying monster selections), at least, and I, as the OL, averaged a win at about the two turn mark. Sometimes it took longer, once, I won on the first turn.
What kind of experiences does everyone else have with this level?
Does anyone see it as being remotely possible for the heroes to win, if the OL has two dash cards in hand at the start of part two?