The people had lived underground for so long that all of the old cherished traditions from the surface had faded, warped, mutated and evolved over the millennia.
Celebrated every other seventh year an person was required to submit to ‘the daily recon’. On this day you have to tally up all the gifts you have been given for the past 14 years, and all the gifts you have given people, and make the columns balance in any way possible.
Where this tradition came from is a mystery.
However the archives do list a ‘day of reckoning’ that was the write of passage for an old barbarian, on their first 14th birthday they would go off into the lower depths of the sewer caves and battle with the veil spore slim. If they returned they had earnt the right to choose their future.
Writing Prompt: Make up a holiday that isn’t based on anything you’ve seen.