|Card 21: Lan Nguyen|
|Where To Get This Card:||One False Note|
|Preceded By:||Card 20: Racco Mansion|
|Followed By:||Card 22: Rocketboard|
"Sixteen-year-old painter Lan Nguyen has always known she is special. Isn't she the top graffiti artist in Melbourne, Australia? Hasn't she won best-dressed in school--with clothes she made herself--since Year 1? But Lan didn't know HOW special until she overheard her parents talking and learned she is a Cahill. Lan's parents are too wimpy to hunt for the 39 Clues, but that won't stop Lan. Her first stop is Agra, India, where she's heard some interesting rumors about a hidden Janus treasure. . . ."
A letter from Lan to her parents about that she starting her hunt after the 39 Clues and that she thinks she knows where one of the Janus Clues is.