In our world there are objects called 'Relics'.
Not antiques or objects of classical art, no: they can be tools with special powers created by mighty ancients or magicians, or objects that have absorbed their owners' grudges or natural spiritual powers after long exposure.
For instance: a stone that brings good luck, a doll whose hair grows night after night, a mirror that shows you how you'll look in the future, a sword that brings ruin to anyone who draws it.
Everybody has most likely heard of such things, as they appear in countless fairy tales and rumors.
Most people consider Relics mere fantasies because they have never come across any. Even if a Relic were right before their eyes, they'd fail to notice it. If a mysterious event were to occur, they'd dismiss it as a coincidence.
Some remain unconcerned, while others are certain that such things do not exist.
Regrettably, Relics are real, and more common than people think.
Whether they bring about good or ill fortune depends on the ones who choose to use them.