Luxon beacon

A  is a sacred relic from the Xhorhasian Empire. One of these very powerful magic items had been stolen by wizards from the Dwendalian Empire and was in the care of the Soltryce Academy in Zadash.

Description
This cannonball-sized dodecahedron had handles on two sides, and emitted a dull undulating grey glow.

When Caleb cast Identify on the object, he found the magic contained within was alien and of a level of understanding outside of what the spell could provide. As he focused deeper on it his brain began to open up into another space of what seemed to be an expanse of an endless infinity of nothingness.

Thuron claimed that the Beacons allowed Xhorhasians to live many lifetimes, and those bound to it to be reborn having their souls and memories retained within the Beacons.

Thuron: "The beacon is part of our culture. The beacon allows the rebirth.Molly: The rebirth of what?

Thuron: Of our people."

"As long as the Beacons remain, me and my people will live more."

"The souls continue. With each rebirth, the memories retain." "We live. We worship. We learn. We die. We are reborn until we are perfect."

Thuron stole the Beacon from the Hall of Erudition in Zadash as part of a detailed plan from the Empress of Xhorhas, Leylas Krynn. It was taken from him when he was killed by the Crownsguard in the Sewers. While the Crownsguard were carrying it off towards the King's Hall, Caleb disguised as a crownsguard, deceived and used friends spell to carry the Beacon off on his own. Nott aided his efforts having created an illusory version of it further off, which she made look to disintegrat in midair. With their combined efforts managed to steal the Beacon.

When Caleb slept in proximity of the Beacon he had a peaceful dream. In this dream a welcoming soft hum and grayish, familiar light pulled him forward through stars of a distant night sky. He saw beacons of light coast by, and a dark sphere before him. After a flash of light, he stood holding the Beacon in his hands. After looking into if for a moment, he then looked ahead, and saw himself, in endless rows. All slightly different to himself, they each began walking in different directions. Looking down again at the object and back up again they were all gone, Though he saw a distant flame flicker. Once more looking at Beacon again and the more he tried to understand its ancientness and scale, being both too large and too small, the more it felt himself walking different paths all at once. Both scary and comforting to him, he looked up at the stars; and saw that they had topped passing by. And in that place for the first time in a long time, he felt at peace, as the dream ended.

The Mighty Nein later bought a lead lined box to hide the beacon within. They stashed it inside Jester's haversack.