It's one of the most astonishing mysteries ever discovered in Scotland and almost 200 years on we are still no closer to solving it.
In June 1836, five young schoolboys were out hunting for rabbits on the slopes of Edinburgh’s Arthur's Seat and found something macabre instead.
Hidden away in a small opening on a rock on the north-east side, hidden behind three slabs of stone, were 17 tiny coffins, arranged in three rows.
