Oh, how the time flies!
They somehow managed to con the hobgoblins into them going inside to check on the king, while the PC's walked calmly, then jogged, then ran like mad away!
They managed to get the dwarf, Rockseeker (IIRC) back to town, where after resting overnight he immediately started insisting they get to wave echo cave.
The PC's did indeed make their way there - and apart from anti climactic stirge encounters (nothing like encountering them in pathfinder!), they opened a door with an illusion across it of the rest of the room...to trick a wight inside that no one had opened the door - after discovering the rooms occupant, they quickly moved on...to speak to a spectator and tried to convince him out of something that magic forces him to do (guard a location) and...the warlock seemed to ignore that you could bypass him if you simply twisted the words of his contract.
From that powerful foe they...then ran into a flaming skull, who'd been set to oversee the area. And managed to convince it that the dwarf noble amongst them was one of the owners of the ancient dwarven mining complex - DESPITE the nobles best efforts to screw this up by saying count comments!
They kicked open the barred doors of bugbears - then ran away, thinking the bugbears would chase them right into the flaming skull. The bugbears promptly boarded up their door again - having boarded it incase the flame skull had come their way - they knew about it, all right! Fair plan, otherwise!
Then an excellent ghoul encounter occured, where the party went and split itself most wonderfully! Lucian the warlock walks in to examine some tables, then the rest of the party in the corridor see him look to his right, look shocked and run left! Malcer the ranger (newer player, so fair enough!) runs after him...but then the fairly beaten up fighter Murden (bugbears did it!) decides not to draw the attention of six ghouls by running in front of them all! Ander instead shoots his short bow at one, drawing the attention of two!
After some zanyness and readied actions which confused initiative order for me! Players are like 'hey, didn't the fighter just have a go?' and because I'm tired and just did all the monsters moves, I say yeah - but actually it's because he readied his action to attack as a ghoul approached. So he goes just before them, and perchance of initiative rolls, he went right after them as well!
Anyway, they thought they were doomed, but with some nat 20's from Malcer and some sensible fighting, they did alright!
The final battle was while exploring a new room with just a handful of ghouls in it - a mere three this time! But Lucian decides to fall back while fighting - and this is the ideal time for the ochre jelly, that had seen them in their previous exploration and was following them, to attack! And it got in one good slap of it's pseudopod too - eventually Lucian retreated back to the party who had finished the ghouls. They all braced for the jelly to come at them...braced and...nothing happened. As far as the module informed me, the jelly picks it's fights - it doesn't come at superior numbers. Making the jelly smarter than some PC's, at times!
And so having beaten the ghouls and feeling hurt, they decide to rest in the room with the ghouls - using their bodies as blocks against the doors as best they can.
Whether they will short rest for an hour or attempt a long rest here, who knows?