Chapter 3: Level 2 dungeon

Upon learning about the plaque Nyx suggests The section stating "The ring is a path to another tomb" may apply to the pool of water. It may take me back to where I came from but I doubt it will be that easy.

As for "dead abhorring sunlight", perhaps the door is opened by shining sunlight onto the undead in the door?

I'll take up a hovering position out in the open area, about 20' from the door with the chained undead. I'll ascend enough to get an angle on the creatures when/if my companions are engaged with them. I'll be ready to attack with spells.

Wait one moment please.

Tante Lude carefully examines this hallway and the doors leading into it, being careful not to get too close to the rotting creatures. She is looking for notches, niches, levers, or other ways to possibly open a skylight or the like upon the area. She pays particular attention to the ceiling as we have a flying creature with us.

Everyone is very carefully approaching door looking into all directions looking at every step they make while keeping one aye on the zombies. They stop near doors afraid to reach zombie heads. Zombie eyeless heads randomly turn from flying Tinkara to Lude and back. As if sniffing the air with they empty noses or watching the live flesh with their empty aye holes.

You realize the three holes in the doors match zombie heads, so they can't reach you unless decide to put heads out the holes, but they seem too hungry for your flesh to avert.

It's just too obvious a setup. We all know this is a trap of some kind with the zombies as bait. What's the trap?

"So you think just cutting off their heads now that they are sticking out like that, will not be a good idea?" - Zean asks curious with a visible hint about disgust towards everything undead.

Nyx sends his familiar to investigate the door. Looking through it's eyes he tries to determine if anything can be seen through the holes around the zombie heads. If the room beyond can be seen at all and a safe location is available then perhaps he can dismiss his familiar then resummon it within the room. This should let him examine the room to get an idea of it's potential threat.

Zombie heads almost perfectly fit the holes and it is hard to see anything past them more over they are not allowing enough light into the room behind, but you could grasp an impression of a larger room being behind the doors, but the rool is covered in darkness

"Bow as the dead god intoned." - Zean cited out loud, thinking about the zombies. AND: checking if they behave in any specific way? Are there anything more significant futures about them? Are those human-before heads?

Humans before. Chultian locals.
Behave typical for a zombie

If any of you can produce light within the room I can send my familiar within to look for any additional dangers or means to open the door Nyx explains his plan to the other

"I have a cantrip that produces light, but I have to touch the object. If you can work out how to get it into the room, I could cast the spell on a copper piece or something."

Pulling one of the seeds from his pouch Nyx sends it floating through the air to the faerie with a few muttered words.Once the seeds is flowing he guides it around the undead heads and into the room. If all goes well he will then send his familiar into it's soul space then resummon it within the room where it will fly above the reach of the undead.

Nyx manage to get the seed into the room and take risk summoning flying monkey in the space he don't see lucky enough monkey is alive and zombies don't care about it. Through your familiar ayes you see that The gnashing heads belong to three zombies that are chained to a pulley bolted to the ceiling on the south side of the door. (you can't know what that pulley would do when turned, but it's obvious zombie moving south would trigger pulley rotation)

You can also observer the rest of the room: Six glass cauldrons brimming with humanoid bones line the walls of this tomb, at the center of which stands an ancient chariot bearing a bronze sarcophagus with treasure strewn atop it. Paintings on the chariot's body show a tall bird with a long, sharp beak. On the south wall, a bronze shield bears the embossed image of a Chultan warrior carrying a spear, below an inscription that reads, "Bow before no one." Four bronze statues stand on pedestals to either side of the shield. They depict Chultan warriors: one holding a sword, two with spears, and one missing its face.

After ensuring the monkey has the light source and is relatively safe he relays to the others the information he has gleened. If we can get the zombies to retreat then the door may open. Acorrding to the clue the undead fear the sun. Have you found any symbols of the sun or is it perhaps as simple as a torch?

With a word and gesture Nyx cups his hand which now holds a magical flame. He aproaches and holds the flame