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
Amy and Dan's grandmother, Grace Cahill, changes her will shortly before her death. At her funeral, her lawyer, William McIntyre, tells Dan, Amy, and their other relatives, of a choice between one million dollars and a chance to participate in the Clue hunting a treacherous path to power. Amy and Dan enter the Clue hunt, competing against more experienced Clue hunters: the Holts, Alistair Oh, the Starlings, the Kabras, Jonah Wizard, and Irina Spasky. They find a hidden library and a clue. The mansion shortly burns down due to the Holts. Pursuing the clue hidden in Grace's library leads to the Franklin Institute. Then the Starlings get a serious injury made by the Holts, who had tried to kill Amy and Dan Cahill. There, Dan and Amy discover Benjamin Franklin has hidden a clue in Paris. After convincing their "au pair", Nellie, to chaperone their trip, Amy and Dan travel to Paris, where they follow a trail of ciphers and traps that lead them to the catacombs. Then, at an old church, they find the clue in a vial. The Kabras steal the vial, but Dan solves the puzzle and discovers the clue: "iron solute". There is also a secret piece of sheet music. Amy's internet searches lead to the probable location of the second Clue: Vienna, the home of Wolfgang Amadeus Mozart.