The Bat Cave!
As if touched by the SoulForger, Bruknar shouts above the noise of the bats and cries out, "Keep moving for'ard, lads! Keep moving forward, don't stop til I tell ye!"
As sick as several of you are, you follow somehow in Bruknar's wake, stumbling and crying out with each strike made by the batty, well, bats. After what seems an eternity of swallowing bat quano and getting struck by the little critters, you come to a place of sudden calm. It is what appears to be a small shrine, one not located on the map, but big enough to hold the entire party. A wooden door with gilded fittings opens to you and seems to allow you egress. Once each of you is inside, you fall to the floor & into a deep, deep slumber.
Each of you pass into a dream state that is at once healing and curing. You've regained all yoru strength, gone are any illnesses. At last, your benefactor whispers to each of you, "Hell is coming. Be ready."
You wake refreshed, but aware of the warning given. It is sobering after the ordeal of the bat cave, followed by the boon of what surely was a greater power of some sort. Despite that, you each are also aware of some sort of boon that's been given, ostensibly by your benefactor. As you mull over the portents of the prior night's dreams, you make ready for the next step in your exploration.
DM Note: each of you awake with a new boon as indicated above. The appetizer is complete. Onto the main meal of this grisly feast.