Jiji is a fucking prodigy... he made a solution based on empirical evidence and applied advanced mechanical tinkering.
So... Alma's headaches may have been because she was maintaining Seth's mental defenses? That may have something do to with her amnesia in regards to that... but then that isn't her infection like it was said, and her missing arm seems more like she lost it in a fight... what is her infection then?
Yeah, Seth... it seems it won't take much time for you to regret saving this asshole.