User blog comment:Xilinoc/Ch. 605 - Don't Call My Name/@comment-3230060-20141113210005/@comment-11051098-20141114002230

I was wondering if those protrusions could be hidden swords or something on Pernida's back, kinda like how Lille had his rifle on his back under the cloak. The movement could simply be Pernida preparing to draw whatever weapon it hides, before its head was impaled.