Re: OoC Chatter
There's no duration on manifesting an eidolon. You can keep her out indefinitely if you want to.
And this definitely won't be a long-term problem, particularly because that would be wildly unfair. If you'd had Melanie out earlier, I would have described an unpleasant feeling but disregarded the mechanical penalty. This is in keeping with the advice in the book--the effects on certain creatures can be a useful hint, but we don't want to unfairly target players for choosing an ancestry/animal companion/familiar (eidolons aren't strictly mentioned because "Malevolence" came out before Secrets of Magic, but I'm applying the argument here) that coincidentally might be strongly affected.
I chose to hit you with the penalty in this case because you happened to manifest her for the first time when the party is almost certainly about to resolve that particular problem anyway.
I'm adding a new research topic, incidentally.
Oh, and nobody has checked the pond yet. Some of you were going to, but that was interrupted by the centipede swarm attack. It was one of the suggestions for what to do next, but so was heading to the house. In the interest of keeping things moving, I picked one of the suggestions when it wasn't settled.