List of The 39 Clues characters
Nellie Gomez (from Boston, Massachusetts) is Amy and Dan Cahill's au pair. She is an aspiring chef and musician. She is considered as Amy and Dan's guardian throughout their travel. Throughout the books, she is the children's only trusted adult, until they learn she is a spy (hired by Grace Cahill). In the sixth book, she is revealed to be a trained pilot. She was later in the series granted active Madrigal status. Her card is No. 244. In Cahills vs Vespers she is abducted by the Vespers along with Reagan Holt, Fiske Cahill, Phoenix Wizard, Ted Starling, Natalie Kabra and Alistair Oh
The 39 Clues
Scholastic has expanded the 39 Clues universe with several books. In 2010 Scholastic published "Agent Handbook", which explores the techniques that the clue hunters in the series use to find clues, and "The Black Book of Buried Secrets", which provides more information about events in the series. In the last week of December 2011, the Scholastic editorial team released seven short stories as part of "The 39 Clues: Rapid Fire" e-book series. The editorial team has also released "The Cahill Files", which includes "Operation Trinity", "Spymasters", and four e-books. As part of the multimedia interactive experience to promote the series, Scholastic includes six cards in each book of the 39 Clues series. Each card leads to one online clue, which readers can unlock by entering the code on the cards on their 39 Clues account online.