Miracle Machine

From: Professor
Description: All the elements of my holiday miracle machine are in place, and I didn’t find a single flaw in its construction. It turns out, the problem is with the junk that Jack’s secret "assistant" gave him under the guise of the "Essence of Humanity". It just left traces behind. Your medium promised to assist me with magic instead of Jack. Are the City’s artifacts ready?
Completed: The careful, magical search has brought results, yet they scare me! Look, do you see this eerie, glowing residue here in the Magic Cauldron? Martha says this powerful, negative substance creates nightmares and fills the monsters leaving the portal with them! I certainly didn’t plan on filling the miracle machine with this...