Atticus Rosenbloom is a character in the 39 Clues who may only be 11 years old, but he has an IQ of over 200. His only friends are Jake, his brother and Dan, his friend he met online, and Amy, Dan's sister. He and Dan are friends partly because they share one major common: they both lost their mother at a young age. The other reasons were because they share a common weirdness and both have a fascination with ninjas. Right before Atticus' mother died, her last words were "Stay friends with Dan Cahill", up until recently, he thought she wanted him to keep his only friend after her death. She also gave him the link to the chat room in which he meets Dan. She suggested this because she knew Dan's grandmother - Grace Cahill - because Grace had told her the truth about the Guardians, Madrigals a