From publisher blurb:
An old wealthy attorney, Ian Elwes, is haunted by a fearsome devil on the eve of the Winter Solstice festival. You are asked by the adventurer's guild to investigate and, if possible, to exorcise this grave threat. Unbeknownst to the guild or the man himself, Elwes has gained the attention of two powerful spellcasters who hope to bend him to their will. Nothing is as it seems in this whimsical one-shot parody of a Christmas classic. Humor, combat, roleplay, literary allusions, and mystery collide in this short seasonal adventure.
The Elwes Incident provides very challenging combat encounters for a 3rd-level party, or a more relaxed experience for a 4th-level group. Give it a try and let us know what you think!