...The light reflected off its pale green surface, glinting off what seemed to be veins coursing through the stone. A curious ring, just lying there as if asking to be found…
...The ring slid onto her finger as if it were lovingly crafted just for her. Its diamond seemed to take in the sunlight, amplify and reflect it in every direction. Then almost immediately, the light waned and the stone went dark. Her throat clutched in a constricting gurgle before she slumped to the ground, still and lifeless.
Some parallel worlds have different time-flows, like the fabled dwelling-places of the elves: those who visit them under the hill for a night return to find that years have passed in this world. Perhaps it is the gate leading between the worlds which causes the alteration. If a gate were 'misaligned', the shift from '| |' to '| \' or '| /' as it were would lead to that difference, much as a light-beam split and bent by a prism ends up taking a longer path. There might even be a mathematical function linking degree of misalignment to alteration of time-rate.