Sorry this turned out quite long.
I'm running the anniversary edition and have a group of 4 players.
On the first attempt into the thicket area by thistletop island after making lots of noise, getting ambushed by the goblin druid and 3 characters dying after getting stuck in the entangle area, a single member managed to get back to town and recruited 3 more comrades.
Second attempt saw the goblins ready and a big fight with Ripnugget and his horde ensued. Another death here as Ripnugget executed the healer after shouting at the party to leave. We had an extra player for that session and the player of the dead character took on this other character following on from this session.
They found Lyrie who escaped with the use of invisibility who ran to Bruthazmus and a fight kicked off, Bruthazmus killed the Catfolk Ranger on a crit with an attack of opportunity as the ranger tried to run away and then Bruthazmus died(he killed the ranger while on 1 HP). Lyrie then surrendered.
Looking around they found the replacement character for the ranger (Aasimar paladin) in the shrine of Lamashtu chained against the wall. Party free him and talk a bit, then realised Lyrie had legged it.
They eventually found the secret door down and the rogue narrowly missed getting chopped up by the trap. Nualia and Orik then opened doors and things went downhill from there. 2 characters ran after being panicked by the Yeth hounds leaving the paladin and a dwarf fighter to face everyone. Dwarf went down and Nualia challenged the paladin to single combat, which the paladin accepted and ran straight into the trap and got chopped up and dumped in the pit. Nualia told her crew to keep them alive as they would make good sacrifices and the other 2 characters returned.
They tried in vain to talk their way out and Nualia took them hostage and showed them the pillar of coins. Getting bored the rogue asked what was behind the other doors in the room, went in and just about got out after the shadows nearly killed him. After lots of searching they managed to open up the pillar and then the door to Malfeshnekor. Driven insane he lashed out at the character who opened the door who then ran, Malfeshnekor then charmed him and called him back. Malfeshnekor had a good meal. The rogue then broke down and begged for his life and pledged to Lamashtu.
So it all went wrong. 2 characters to be sacrificed for the glory of Lamashtu, 1 eaten by Malfeshnekor and 1 joining Nualia and her crew.
The group are drawing up new characters and will be starting at the next section (I gave them the choice of going in with new characters to try finish things or move on), so i need a way to bring Nualia and her expanding gang back into the storyline. Tsuto could well join them as he is languishing in Sandpoint's jail awaiting his shipping to Magnimar for trial.