G grumbles. If it wasn’t for their engraved desire to protect their friends, the paladin would have rushed off after the fleeing foe. She passed. “Hmph.” They’d huff, clearly not impressed they got through. “Now what?” G would ask the group as they’d stride over to the Cleric. “Miss Mallet, can I be of any assistance?” They’d offer to help with any healing.

J2 is empty, the only thing of interest in here was the undead.

J3

A small basin, filled nearly to the brim with dust, protrudes from the southern wall below a few smudges of faded paint. A narrow stone door leads north. 

With her Passive Perception, Morticia is able to discover a stone tile several inches across. The tile bears a carving of a stylized pair of feathery wings that is identical to the one you saw in Roslar's Tomb in the Boneyard. She also finds a 2nd level Pearl of Power

Mallet still has her eyes and ears open for the turned (unturned?) undead who got away. "G, I can heal everyone halfway back to normal, or more of the way if we have ten minutes. It seems we're moving along, but I'm still worried about that escapee."

Perception: 14

Mallet doesn't see or hear the spirit, not like there'd be any footsteps or something like that to hear from a shade. You can all reasonably conclude that the shade has enough intelligence to not go for a 1v5 fight.

"Perhaps you may be able to cast your spell while miss Morticia and others complete the inspection of this room?" G suggests as they glance around the room, eyeing the button if pointed out to them, and then the northern door. Should it be safe to them to cross the room and guard the door, they would until everyone was ready to proceed.

Perception: 13
Investigation: 7
(What button does? Anything beyond the door?)

Shi looks around the room with some curiosity, the blue orb that is Briana bobbing beside her and then zooming around to assist anyone who needs it

(I will guidance anyone making checks here)

If the group is taking a while to inspect the room, Mallet will begin to cast prayer of healing. Spirit guardians is still running, little points of light flitting around her, looking for danger. Let me know if the group wants to take a while to inspect, and she'll start casting, and I'll roll for healing if it actually happens. 

(Been so busy lately so sorry guys!)

Morticia perks at the sight of the tile and points it out to the group. “That tile looks like the one back at the Roslar’s Boneyard.” She brings her gaze over them. “Maybe it’s… a button we could press? Or throw something at?”

"Or lift it," Shi suggests as Briana's orb dashes over to take a good look.

Corinne looks around at her party, "What do we need to do here?"

"Is it another puzzle?" G would question from the doorway.

G sees into the next room

J4. Landing

Several wires hang loosely from the ceiling, and the remains of a broken stone bench are heaped against the western wall. A door exits to the south and a set of filthy stairs leads down to the east.

As for the tile, it doesn't look like there's anything to be done with it at the moment, but it's small enough that you could take it with you.

J5

Discolored paintings along the northern wall depict a few types of weapons, including several rapiers and lances. Indentations in the wall hold plaques under each illustration, but the plaques are all blank. A short hallway to the east leads to a set of stairs going up, and a rough passage in the stone leads west. The south wall contains the frame for a doorway, but it is blocked with solid stone. Crouching in the corner of this room is a figure in a tattered cloak making noises that sound like desperate sobbing.

Mallet finishes casting prayer of healing for 21 hp for everyone. "I hope you all feel better. I could have brought everyone to halfway healthy first, but I want to preserve this ability to cause the undead to flee -- it may come in handy. So there is a hidden passage between this tomb and the Bastion of Light," Mallet says, trying to reconstruct things better in her head. "And the undead are congregating there. Here. This could get tricky. Oh, there is someone, or something, crying in there. Do they seem alive, illusory, or  undead?"

She takes the best look she can from outside the room. Perception: 14

(What is a second level pearl of power? More spell slots than the normal kind? She ended up with the first one we found. Mallet would like to use one of the pearls to regain a 3rd level slot if she can. Someone else should take one of them.)

(A 2nd level Pearl of Power is something that doesn't exist in 5e, because Pearls of Power work differently in Pathfinder. But yes, you have two now and they're both normal Pearls of Power)

Mallet perceives the creature as definitely being real.

10

 It doesn't look like any living creature you've ever seen.

Corinne approaches the creature cautiously, muscles and reflexes tensed and ready to spring into action. When she gets within 10 feet of the figure she will clear her throat and call out, "Excuse me, but what are you doing here?" 
At the first sign of attack, Corinne is ready to pounce on the figure.

From 10 feet out, Corinne can clearly see that this creature is no humanoid, but some sort of large, zombified insect. As a response to Corinne's inquiry, the creature springs up, ready to fight!

Roll initiative!

Jando:13
Xenopterid Spore Zombie:9

Mallet init: 19

Init: 13

G would inhale a deep and freshened breath when Mallet would finish her ritual. They’d give a deep bow of their head in gratitude and perhaps there was even a hint of a smile tugging at the corner of their lips. Clearing their throat, they’d correct their posture. Allowing the others to go ahead, the paladin would gently usher Morticia along with them. 

Witnessing a zombie bug lash out towards Corinne, G draws their scythe with a schwing!

Initiative: 13