Legendary · Sentient Glass Marble (wondrous item)
Its story
At first glance, this is an ordinary glass marble, small enough to hide beneath a child's thumb. Its surface is cloudy blue-green, worn smooth by years of play, and a crooked streak of amber curls through its center like a trapped sunset. Look closely and that streak seems to twist into a different shape each time. In silence, the marble sometimes clicks against its container as if trying to roll away.
Lore
Old tales call it a plaything that remembers every hand that held it. Some say the marble is a prison for the first boy's last moment; others believe a spirit of chaos learned to imitate his grief and now feeds on the misfortune that follows. Children trade it as a dare. Adults who know its history refuse to touch it, yet it has a habit of appearing in pockets, toy boxes, and abandoned rooms just before disaster.
History
The first known owner was a young boy whose family was attacked by bandits. He was killed during the raid, and the marble was found among the scattered toys afterward. In the years that followed, ten children inherited it in turn; each met a violent, untimely end, though the circumstances differed. The marble later passed through the hands of adventurers, collectors, and other children, leaving accidents, betrayals, and sudden deaths in its wake. No account agrees on whether the marble causes every tragedy or merely steers chance toward the cruelest possible outcome.