"Agreed on pressing on, Tezzy." concurs Eima.

She looks on worriedly as Tymmy looks for her daggers through his distraction. "Oh I hope I don't have to dive in there meself." she mutters to herself.

To Sky she replies, "I'm fine meself. And no worries on the fight. Seems it was pretty hardy against everything but Tezzy's lightning."

[[ @Cyreon, is there any time limit on the Temp HP from Tez's Protector Cannon? ]]

"I'm fine, too," Tez replies to Sky. "It hit me a little rough one time and I might get a bruise but nothing to worry about just yet." 

[OOC: the temporary HP last until the next long rest and the protector cannon itself lasts for one hour. During that hour it refreshes 1d8+3 temp HP every round with a bonus action, so I think it would be safe to assume that we all have 11 temp hp - the current maximum - after a very short time after this combat.]

Moving on...

Glossy urns and cinerary boxes line the walls of this vaulted rotunda. Drifting in the center of the room above a drain is a ghostly, transparent, humanoid figure. The figure is clad in plate armor, and where a head should be, there is instead a featureless, luminescent orb.

Eima turns to Tezzy, "What's the eye doing? Headless ghost in plate armor, possibly a guard of some sort?"

Tez checks the eye after Eima prompts him to do so and just in case repeats the activation phrase to the eye and into the room towards the odd figure. “Let’s see. It wanted us to go here. But better we go in there prepared.” Tez dodges and steps carefully 10 feet into the room, hugging the western wall.

Sky will keep an eye on Tez and ready produce flame to attack anything that tried to attack him. 

The ghost floats slowly toward Tez and wails softly, "Help meeee...Who am I....tell me who I ammmm..."

(Feel free to make an insight check)

Tymm is just going to grip Notch very tightly, watching the others that are smarter than him figure out how to proceed

"Hail the Undying," Tez ventures and bumps into the wall behind him in a futile effort to bring distance between himself and the ghost, while his mind races in search for a clue in the ghost's appearance or mannerism. A strange presence in his mind lends some help, but should he feel reassured by that? (Insight with Guidance: (19+2=) 21)

Between the appearance of the ghost, it's featureless head, and it's cry for help, Tez can reasonably assume that the ghost has no idea who it is, and perhaps it needs help recovering its identity. Perhaps that is why it is lingering in the area and hasn't crossed over.

"You don't know who you are?" Tez repeats the question to buy some time and skips to his left along the wall to evade the ghost. 'And I am supposed to know? What the heck?' He thinks to himself. "You're a valiant defender," Tez begins. Though, he doesn't believe something so general will do the trick, but perhaps buttering the ghost with compliments will at least deter it from a direct attack and it could be argued that he is actually trying to help the ghost. 'And a most annoying one at that!' he thinks, while he glances at the urns behind him and at the other walls. Does any of them urns or boxes stand out? Do they have names written on them?

(Make a perception or investigation check)

The ghost does not seem hostile, simply lost.

Tez figures that the ghost might not be hostile and relays his observations, about the ghost and the inventory of the room, to the rest of the group (Investigation with Guidance: (7+5+4=) 16)

[OOC: I don't want to seize control of the game and will wait after this post until everyone had a chance to read and react.]

Quote from cyreon >>

Tez figures that the ghost might not be hostile and relays his observations, about the ghost and the inventory of the room, to the rest of the group (Investigation with Guidance: (7+5+4=) 16)

[OOC: I don't want to seize control of the game and will wait after this post until everyone had a chance to read and react.]

 There is nothing in the current room that gives any indication as to who the ghost might be. However, there are steps leading to other rooms.

Tymm walks forward unthreateningly and addresses the ghost.

”Hey, uh, I’m sorry you’re so confused. But while you try and figure it out, can we go into some of these other rooms please?”

Eima looks on with interest as Tezzy starts combing the room. Seems the ghost was friendly enough. At least it wasn't trying to kill them or anything. She follows behind Tymmy and backs him up, "Aye. There may be better clues elsewhere we can help ye with."

[[ @Cyreon, no issues. Appreciate Tez's investigations. ]]

Quote from cyreon >>

[OOC: I don't want to seize control of the game and will wait after this post until everyone had a chance to read and react.]

 (Each character has their own areas of expertise so there’s nothing wrong with deferring to a character better equipped to deal with whatever is happening. So feel free to try and figure this out. It’s not like Tymm is going to be super helpful at this moment!)

Tez regards the ghost, “We see what we can do for you, all right? Maybe we find you a head, too.This glowing ball of yours is far too intimidating, if not for that orb you seem to be an amicable fellow.” He skirts around the ghost and tries to get a glimpse of what is down (or up?) the stairs SE. 

A stone, gold-painted sarcophagus rests in the center of this tomb. The sides of the sarcophagus bear a relief depicting two women gazing lovingly over a field and a city, and the lid has a faintly distinguishable family crest carved into it. Old weapons and decorated armor line the walls of this room.

Eima takes a look to see if there's any signs of traps.

Perception: 2+3 = 5

[[ Assuming that wouldn't find anything. ]]

She says, "I can take a look in there if ye want. But would be nice to have another set o' eyes." She grabs out her thieves toolkit in preparation to investigate the sarcophagus if someone else confirms her suspicions of no obvious traps.