The spirits of the dead told me a great deal. [ ...Now that she thinks about it, most of her info-dropping conversations happened with Sollux, Vriska, or Equius. Or...other people who weren't Karkat. ]

They did not always explain the things they said, of course, but I was in no position to ask for answers, given I didn't much care at the time. But I always knew the order we'd enter in, and why we had to do so in that order.