Mafia 75. The Mystery of the Ancient Ruins.

I won't draw any conclusions about the cozy group consisting of Heroist, Vespers, and Ment, who joined them, but it's clear that they didn't start this whole thing from scratch for no reason.
And in general, with our current situation, we can simply eliminate people randomly, excluding a couple of relatively peaceful individuals.

Alright, let's examine your clues.

Let's examine them when I'm making more serious assumptions about the general direction of the solution and providing a brief overview of episodes from the classic Doctor Who series.

What words do you want to hear from me? "Want some tea?"

No way, I don't have any myself. All the tea has been taken by those parasites.