From the introduction: Predestination. On a dark and stormy night a simple priest of Odir had a vision. Darkness was coming and it is to engulf the whole of Blackmoor, but fate is a fickle device that way. If you can’t change the outcome, why has the Grandfather of the Gods sent this warning? A Dave Arneson’s Blackmoor one round adventure for characters levels 5-13. The second installment in the series: The Infernal Darkness.