Detective Conan fanfic Irene Edogawa.

Alice spade was a normal girl (as normal as a genius detective multi billionaire heiress can be) until she agreed to help the FBI hunt down the black organization. She was caught and shrunken by a poison. She thought she had it bad until she met kudo shinichi genius detective like her, shrunken into a seven year old like her. Now on order to be safely hidden so the BO doesn't go after her again she goes to Japan to hide pretending to be Conan's twin siste, Irene Edogawa.