If you tell Braindeath that you lost it, he will say, "Of course ye did. It wouldn't be ye without misplacing an irreplaceable, dangerous secret at least once now would it, [Player]? Fortunately for ye, it were a fake. I knew ye'd lose it." You can attempt to unlock the Twiblick night special with a lockpick/hair clip, but you will be informed that "Inside is another Twiblick night special and a note." The note is from Captain Braindeath, and says "Don't try that again."