He wore a glowing talisman on a leather chain around his neck.
I don't use history to predict the future, like some talisman that lets me pick winning lottery numbers (don't I wish).
Recent grail researches have made it most probable that that mysterious talisman was originally the vessel of the ritual feast held in honour of a deity of vegetation, - Adonis, or another; if the Round Table also, as Dr Mott suggests, derives from a similar source, we have a link between these two notable features of Arthurian tradition, and an additional piece of evidence in support of the view that behind the Arthur of romance there lie not only memories of an historic British chieftain, but distinct traces of a mythological and beneficent hero.
The image or idol differs from the fetish, charm, talisman, phylactery or miraculous relic, only in this, that either in the flat or the round it resembles the power adored; it has a prototype capable of being brought before the eye and visualized.
Ully returned a couple of minutes later. He strode to Toby's cell and dangled the talisman before it. Toby's door opened.