"I agree with you anon about the demon angle. Never heard mention of it before.

However things were far from certain in the Croatoan case. When they came back they only later theorised that the current inhabitants could be of mixed origin. However, even if they had been on the island when they thought of this, there would have been no way to test it back then. Thus not a fact.

And this is why the Croatoan case is quoted in books dealing in strange disappearances."