The Medusa Medallion.
I nearly missed it, buried as it was at the bottom of the box among a tangled knot of broken chains and skittering loose beads. I'd reached for the moonstone, wondering what could glow so brightly in the dark recesses of the broken casket. When I picked it out, she followed.
Was it just a trick that made the snakes appear to writhe and coil around her green face, their tiny eyes glittering in the lamplight? I know she glared at me for disturbing her slumber, one eye all-seeing, the other an empty crystal orb.
I took her to the window to examine my find, where I saw her delicate features caressed by repulsive reptiles. Such beauty, wrapped in a nightmare. She hung loose from the chain I'd wrapped around my fingers, twisting around slowly until she faced me again.
The moonstone beneath her chin glowed; I saw it, but did not understand.
Not until I felt my body stiffening.