" had forced him to buy Exeltec from me for another exorbitant sum, so I came away from this in a good enough position. The CDC failed to find evidence that Panos had released any kind of pathogen, and eventually determined that the note on Panos’s computer had been an idle threat, meant to send I3 into a panic. Earlier that morning, Dion had sent me a thank-you note from him and his mother for stopping the government from burning the body. I hadn’t yet told them I’d stolen this thumb drive. It contained the key, and a . . . second file. A small text document, also encrypted. We’d stared at it for a time before realizing that the key had been printed on the outside of the thumb drive itself. Chapter nineteen "

― Brandon Sanderson , Skin Deep (Legion, #2)