Board Thread:Fun and Games/@comment-25559267-20150331163300/@comment-3560963-20150424015920

Honestly, Pearl wouldn't be able to be corrupted 1. Amethyst and Pearl stopped fighting in "On The Run" when the conflict was resolved,when was the last time they argued? 2. If there was a diease or virus that could corrupt a gem, Garnet would know about. 3.A Virus can't corrupt a gem because in "Ocean Gem" the Gems say that the corrupted gems became corrupted when they become dark and cruel, that doesn't exactly sound like Pearl. Pearl is deeply caring and is willing to sacriface herself to protect others. Bubbles can pop easily and keep in mind the Hand-Ship did hit the temple so maybe it caused the monster to get freed. Well, technically, there was that one scene in Rose's Scabbard before Pearl's little depression spiral in the strawberry fields...but that wasn't so much a fight as it was Amethyst calling Pearl out for being a self-rightous harpy (temporarily, mind you she seems to have calmed down to an extent since then).
 * TheMagicalWizard* wrote:

And while you do raise a good point, I think (and this is based on my own opinion so don't take it as an absolute certainty just yet) it's less a disease and more of a psychological breakdown. See, from what I can gather, a Gem becomes corrupted when their minds alter beyond recognition from their previous selves. Kind of like going insane. But as Steven has proven and I'm sure this episode will prove, it can be reversed, you just need to know how.

The only question is who's the lucky Gem? Most (including myself) are banking on the Centipeetle mother since she came the closest to being reversed until her untimely impaling. Others are going the more obscure route of the invisble Gem monster from Island Adventure.