Next session up, a belated Halloween session
https://the-awkward-companions.obsidianportal.com/adventure-log
The flying black shadowy snarls are my own creation, Dhar Worm Swarm %%%
Based on bat swarm but then modified, they are flying manifestations of dhar energy, found in areas where dhar energies have long pooled. Tales among necromancers and warlocks speak of capturing them and using them to power dark magic.
The PC's are actually in an area of 'dhar taint' but no magical sight has been used, the reference to channeling and "oily film" reflects one of the effects. No one tried any Knowledge or other checks to figure out what they were.
The adventure overall draws on the background one Player created for his PC (Edrahil), how he was falsely accused by a witch hunter and saved when a Verenan intervened in his trial. This was in the Border Princes territory and now those figures are "coming back on the stage".