Session 22 - Crawling the Crypt

The PCs defeat an Umber Hulk who's natural claws have been replaced with manufactured ones.
The PCs then enter the mines and investigate.
They find a wide set of Dwarven-made stairs descending into the depths behind a locked gate.
They find a crypt. Thanatos detected undead, Taraxacam caused them to stir. PC win. They find the sarcophagus intended for the founder of the Knights of Samular, but occupied by the fallen hero who was being taken by the delegation to Summit Hall for a hero's burial.
Undead guy shows up, when asked about the fallen hero, he says "it is unlikely my brother (presumably the founder of Summit Hall) will ever be relocated here so he (the knight carried by the delegation) is welcome to rest here."
The group explores the rest of the mines and spots prison cells at the end of a long hall (and they hear voices).
Olivine got a magic ring (fire resistance?).