[@Shu] I have opted to go for deceiving the guards, assuming that contested skill checks operate the same way that combat rolls do (i.e. 2d8 + relevant skill + relevant attribute) then in this case [url=https://www.roleplayerguild.com/rolls/23234]I rolled an 18[/url].

EDIT: Rerolled under new skill check rules, [url=https://www.roleplayerguild.com/rolls/23235]rolled a 17[/url].