[x]Visit the professor's home
Depsite the risk to sanity, I think this is the best way of separating out the possibility of the plague being unrelated, or the source of it having left the house. I don't think that's at all likely, but wasting time kills and I think identifying something about the underlying source or effect has reached the point of risks being worth it.
The investigation really went nowhere at all. I don't think we've ever had this much trouble ever before when delving into something.
The timeline so far.. Goes to India. Uncovers ancient Royal Vault. There was a cave-in and multiple students died. Professor brought back something and among them was a Chinese doll? The Necronomicon papers indirectly involved that set him off. Our glimpse gave us the eldritch animal shifting spell and many limbed monstrosity summoning.. We don't know what the professor saw. There is a chant involved. The entity holds him in place for months.
Good summary and hypothesizing.Well I think we might be dealing with a potential guardian spirit. Brahma-Raksash/Brahmadayito.. They function as temple guardians and sometimes took resident in artifacts. Wish granting like a genie in the tales, but other times casually violent and wringing necks and hanging bodies on trees.. Doesn't explain the plague though. Perhaps a temple curse. Perhaps Jokkho instead who are associated with underground treasures and have overlap with Brahmadayito?
Could this be the entity in Peru manifesting? We only sealed one aspect of them and didn't deal with them conclusively..
This actually does make a lot of sense. We definitely shouldn't take things at face value.. We have no reason completely trust the Professor who might be potentially the culprit. Death of the students isn't seating well with me. There's a public record of the other professor getting into a fight with him so we can probably rule him out as an accomplice. The neighbour could be a thrall, but really feels more like a bystander who got caught seeing he's visibly sick. You know, for maximum safety in case we do fail a Roll and get trapped we should let Emily and Jackson know just in case. So they can attempt to disrupt bindings? Presumably Emily knows all about this already and she has already have a metting with Jackson. If she figures out telephones she can call Jackson to look for Oliver.Good summary and hypothesizing.
I'd suggest one other layer of assessment, now that you've got me thinking.
"How do you sort out the liars?" - Mad Eye Moody
If the evidence is contradictory or inconclusive, perhaps a piece of evidence is misleading by intent or happenstance. On the assumption that the vote options themselves cannot lie, the necronomicon is a source of knowledge/power. Everything else is in story, and therefore could be a lie.
For example, the professor is actively causing the plague and faking insanity. He stayed home for months, attempting some long term ritual that failed. The backlash of that failure messed him up publicly and he was institutionalized. Now he's starting again from the asylum, while his acolytes send us on merry chases into his trapped home.
Alternatively, the professor's colleague used the professor as a guinea pig, tricking the professor in serving as a filter and note-taker for getting a particular ritual out of the necronomicon.
Or the neighbor is the cause of the plague, after discovering hidden notes on a ritual within the chinadoll, and used the professor as a test subject.
We only have to flunk one "Sense Motive" check to fail to note suspicious behavior from among our suspects. I don't have a theory I like yet, but I figured I could share.