*back in the spa, killua has tracked down the tank that the vent inside the sauna leads to and unscrewed the lid, theorizing that whatever it sucked out of them must be inside it. he's immediately hit with a puff of thick, green, foul-smelling gas, not unlike the stuff that caused him to go mad with arousal. he coughs and sputters, but as his lungs clear so does his head, his feelings and even strange, secondhand memories of being trapped with pitou inside the can itself returning to him as the toxin courses through his bloodstream. with a sigh of relief, he realizes that he's once again his flawed but whole self.*

it worked...