Where: Degannwy
When: not sure. seems random and can happen whenever
What: A group of the critters (feu follets, pixies, and cooshees) will sometimes, at complete random, aggro and attack people. Generally they cast their abilities (invis and exped. retreat) before attacking.
How to recreate: Unsure. I have been spending a long time sitting still at the corner of the grove and it did not happen for 2 days. Meanwhile, it happened within an hour to a friend before. It doesn't seem related to OCR, as I have base 4, and my friend had 14.
ideas: i think being near any friendly creature can, eventually, cause it to 'decide' to aggro, much like how deer will randomly turn red and if unable to retreat will attack.
Still, this is probably bad to have as a bug for anyone who is related to Degannwy, since attacking back will probably get you in worse trouble (until a reset)