Still in the castle.
Some ghosts wailing and bitching
10 pp + 500 gp topaz
Ghosts indicated a journal hidden in the floor, mentioned fearless & organized hordes of goblins, hobgoblins, an orcs
More aimless wandering around the castle
After a long while, eventually found some sort of visitor's manifest with more predictably cryptic information in it
The three codewords revealed, as well as their purposes
Evil artifact located: an egg on a barber pole stick, a prison of some sort that has been opened
Magically impossible double-locked door, sure, why not
Coins found, 155 gp
Finally a successful parley with the head ghost in charge
Freeing the undead: 750 XP
Wiki: 750 XP