The black moon, seen only as a shadow snuffing out the light of the stars, slowly fell into the frothing sea. A pure darkness, the polished obsidian glinted, for one moment, at one angle, a mirror, then it was gone, swallowed up in the horizon. Some say it was an unhatched egg laid by some mythical, cosmic bird. Some say it was a prison for some evil god. The truth, whatever else was true, whatever else anyone said about it, Mr. Grayson loved it, loved how the sea would toss as it drew near, how it would herald the winter, and how it glinted, on this one day, right before it disappeared again for another three years. That bright flash thrilled him, and he never missed a chance to see its brief moment to shine.
The sacrifice had been perfectly timed, and he knew, it was a science for him won by many experiments, that she had let out her last breath in that all too short glint when darkness became light. Whatever the next three years would bring, whether some eldritch hatchling or demonic tyrant, Mr. Grayson knew he had played his part.