Who Broke the Seal of Crocell?

What drops the clues required for the quest 'Who Broke the Seal of Crocell?'
I've been hunting all around Henesys/Nautilus and inside the Demon Doorway to no avail.

Read the quest info. Monsters in the map around the Demon Doorway drop them (not inside)

Maybe I worded it wrong but I hunted the outside, as well as the inside. I guess I'll just keep looking then. >_>

I was looking for the paper on my F/P wizard, and I killed some monster called "Strange Ribbon Pig" and it dropped the paper.

What about the Thief one? Is it Blue muchrooms or Horny?

What about the Thief one? Is it Blue muchrooms or Horny?

I got mine from Horny.