The thief who survived the last session with over 7k banked XP hired some new companions and low-level adventurers to guard the known entrances to the dungeon.
Rather than take lots of time to prepare and coordinate, they opted to go straight back into the dungeon the very next day. Because it took them the better part of the morning to resolve the previous session’s adventure and recruit new party members, they didn’t have their new guard posted before the rival adventuring party had a chance to start poking around the ruins of the buried monastery.
My players decided to try to talk things out with the rival party; it was nominally led by a cleric of the same local order as the PC who’d died in the TPK session. Cleric convinced the party that they were mostly looking for items of religious significance and were tasked with surveying the lower ruins. They wouldn’t join up as henchmen/hirelings, but would be willing to exchange information. Cleric also warned about the artificer’s workshop supposedly located off the south end of the abbey.
Satisfied that the party had bought their story, the Cleric’s party continued their looting while the players found the back entrance to the East Chapel’s relic room. The fighter made his poison check to open the reliquary cabinet and the party retrieved the blessed shield and mace within. While they could’ve kept the cabinet, the fighter smashed it up instead, costing them a decent chunk of loot XP. In a room off one of the naves, they found another +1 mace, and then, in the narthex, they found the secret passage to a supply room.
The supply room was haunted, and while the party leader was investigating the boxes, three faded wraiths rose up and attacked. (“I didn’t touch the chest, though!” “It wasn’t actually a trap. It was a ghost.”) The faded wraiths couldn’t get hits on the fighters, but they DID kill party leader before they were dispatched.
And just like that, 7000+ party XP was gone with one character.
Now, they DID have a chance to save him. There were no wounds; he’d just stopped breathing. He expired right next to a box full of holy water and holy symbols–I would’ve allowed the players to use those to revive him, since he’d been killed by monk ghosts; if the party had a cleric, they would’ve known this could’ve worked. Also chest compressions could’ve worked. Instead, they dragged him back to town, where the healer said he was probably too far gone to help.
On the plus side, one of the thieves who missed the TPK of the second session got enough XP to reach level 2.