Board Thread:General Discussion/@comment-3214109-20180524224745/@comment-3214109-20180606231102

I've been thinking about that too. Perhaps it's a side effect caused by the Oni Masks? I also read a theory that Harumi was bitten by a spider (similar to how Garmadon was bitten by the Great Devourer) and said spider is living on or inside of her and poisoning her with its thoughts. I believe either the Oni Mask or the spider's venom, not only infect Harumi but perhaps intensify any darkness that may have already been lurking within her like her grudge against the Ninja or her grief over the loss of her family and don't let her think on the consequences.