Into the Depths
The group makes its way back to the 'frozen warrior' room. When the lantern light reaches the first of the warriors, they can see that the ice is no more thawed than when they left the room - it was getting pretty thin. The floor is still just as treacherous as previously, and whoever enters the room with the lantern far enough to see the first columns needs to make a DEX check (I'm assuming that would be Gavril, since he's been holding the lantern 'till now and now one specified differently).