|Card 18: Amy Cahill|
|Where To Get This Card:||One False Note|
|Preceded By:||Card 17: E-mail Code|
|Followed By:||Card 19: Monument Valley|
"Fourteen-year-old Amy Cahill likes history, books, Egyptian Mau cats, and memories of her mother. She does not like breaking into hotels, high-speed canal chases, or being mobbed by angry monks. Amy thinks she has no chance of finding the 39 Clues before her power-hungry relatives, but that's where she might be wrong. Because Amy has more Clue-hunting skills than she believes. . ."
The top secret from this card is a message from William McIntyre to Grace Cahill about a test that he gave Amy at a museum while she was on a field trip to find her strengths and weaknessses. He says that they might want to start evaluating Dan too. This message can also be seen in the Agent Handbook.
This card tells you that Amy once believed in Santa Claus.