Eye of Argon
From Jenny Everywhere Wiki
During her visit to the fantasy world of Ecord, Jenny Everywhere saw a mural in the Temple of Argon which depicted the old idol of Argon, which had, by then, been destroyed. Its single eye was a scarlet jewel with many facets, emanating rays of mystic energy. (PROSE: Jenny Everywhere and the Eye of Argon)
Behind the scenes
The idol and the cursed jewel serving as its eyes were central to the original Eye of Argon novella simultaneously sequelised and spoofed by PROSE: Jenny Everywhere and the Eye of Argon. During the events of the novella, the Eye was stolen by the barbarian Grignr, only to melt into a living, shoggoth-like blob-monster when he tried to retrieve it out of his pouch.