The gauntlet is magical.

The mouse head is something you have heard of before. It allows casters to use the spell Find Familiar without components.

Everything else looks mundane.

The door is unlocked and has no traps. It pushes out.

Vodin will open the door to see what lies beyond it. 

Nib will follow behind Vodin. 

The hallway is damp and slippery. It leads about 35 feet before turning to the right.

Looking around the corner you see another set of bronze doors decorated with farming scenes 40 feet away.

Since the floor seems slippery Vodin will move at half speed and keep an eye out for dangers. 

Perception 

16

Once at the new door he will try to open it. 

The doors open to a corridor that turns sharply to the left. It is about 20 feet wide and there  is a lot of debris along the walls. The walls are covered with paintings. The south wall shows of a battle between natives and foreigners.

The north wall shows people searching for a new land - crossing dangerous mountains, sailing across stormy seas, and praying for the blessing of the gods to keep their home safe from invasions. In the center of the wall is a painting of a pyramid with a temple atop it and the sun shining over the land. There are runes engraved in the pyramid.

Down the hall there is an archway carved in the form of twining serpents. Beyond it, the corridor continues on into shadow.

Vodin walks to the painting of the pyramid and tries to decipher the meaning of the runes. 

Arcana 5

Assuming he did not glean any information, he turns to his comrades. "Can any of you decipher these runes on the painting?" 

Quote from Weathervision >>

Vodin walks to the painting of the pyramid and tries to decipher the meaning of the runes. 

Arcana 5

Assuming he did not glean any information, he turns to his comrades. "Can any of you decipher these runes on the painting?" 

 It is in the same language as you had seen before.

“Give me a minute, Bud. I’ve got something around here for that.” says Glink as faint chanting can be heard within his armoured shell.

(Ritual cast Comprehend Languages)

The runes say "Turn Around".

Glink makes one full revolution before waiting expectantly, slightly dizzy but fine.

Nib will look in the opposite direction from the Rune

Among the paintings is a sun symbol similar in design to the necklace you found.

Nib will go over to the painting and check it out, including removing from the wall.

Seeing Nib, Glink says, “Good thinking Bud,” as he begins to take all the remaining paintings, smashing the frames and rolling up the canvases to stuff into his pack.

Quote from Backstabitha >>

Seeing Nib, Glink says, “Good thinking Bud,” as he begins to take all the remaining paintings, smashing the frames and rolling up the canvases to stuff into his pack.

 They are scenes painted directly onto the walls. But as Glink looks at them he notices an impression in the image of the sun.

Vodin is puzzled by what Glink said. "I wonder why it says turn around" He looks around for any hidden doors or compartments along the painting. 

Investigation

6

Finding nothing of note he shrugs and hopes Glink can figure out this mystery. 

Glink stands in the dimly lit chamber, the stolen amulet from Tupac’s tomb clutched in his hand. The golden medallion gleams in the flickering torchlight, and for several moments he holds it aloft dramatically.

As if on cue, the sound of an ethereal choir begins to rise, their voices swelling in a divine crescendo that seems to fill the entire room.

(Cast Prestidigitation)

“Behold!” Glink exclaims, his voice echoing through the chamber. He waits a few more beats, letting the moment hang in the air with theatrical tension as the choir reaches its peak.

Then, with a flourish, he jams the medallion into the impression in the sun painting, his hand shaking slightly from the excitement.

Turing to Vodin he cockily adds, “The moral is: always loot”

Quote from Wysperra >>

The mouse head is something you have heard of before. It allows casters to use the spell Find Familiar without components.

 Do I need to know the spell to be able to cast it using the mouse head?

Quote from Backstabitha >>

Quote from Wysperra >>

The mouse head is something you have heard of before. It allows casters to use the spell Find Familiar without components.

 Do I need to know the spell to be able to cast it using the mouse head?

 Yes, you need to have it prepared. It is just a reusable component.