Dawn of the Living Proof

Just when the guardians of Neighborlee believe they can relax and enjoy the results of their labors, a new enemy makes a strike, aiming at some newcomers who have come to town seeking shelter. Is this another, roundabout attempt to break down the defensive shield around the town, or a more sinister plot? Are the attacks aimed ultimately at Angela? Clues indicate this isn't a new enemy at all, but an old enemy making another attempt to get a foothold in Neighborlee and perhaps steal not just magic, but break open the gates that Divine's Emporium and Angela keep securely closed. What type of magic is this that seems to be active only at night, and disintegrates with the coming of dawn?