Valetni whipped a small unlabeled bottle of a clear liquid from his robe, and then two cloths, one damp and one dry. "Here," He said, passing Vernasus the dry one. "Urinate on this and wrap it around your face." He instructs as he wraps the already damp one around his own. "Make sure you cover your mouth and nose."
He held up the bottle. "This is a compound I devised, it interacts with Arsenic on a 4:1 ratio and neutralizes it, with a relatively harmless though highly corrosive by product that you do NOT want getting on you." He gives a shake to show how the bottle is nearly empty. "I have more in my room, in my closet. It's on the second shelf, there should be two bottles that are exactly identical to this one, do you understand? I need you to run and get those for me while I begin cleaning up." He says, while pulling on thick leather gloves Korsarro had made for him on request a year prior.
"I'm gonna do my best to clean this up, but you spread it all into the air..." He shakes his head once more. "Don't let anyone in here, under any circumstance, we need to evacuate the entire library." He paused as a thought occurred to him. "What's his face is here...Al, warn him and get him out of here."
"Why couldn't you just take a joke Vern?" He says, as he sets off into the cloud.