The brave adventurers were hired by the King to rid the lands of evil. Little did they realise that the evil was a devil that went by the name of Lysergic Acid Diethylamide, LSD for short.
Reality started to slip away as a lot of the encounters turned out to be illusions. The party was hired to test out a new magic artifact from the Magical Research and Development Department. Besides the unfortunate transformation of one of the party into a dog and the accidental destruction of the artifact, it seemed to work ok(ish).
In summary: The party survived: so did LSD: but the orcs didn't.
Thanks everyone for a fun afternoon