3x09 The Girl Who Knew Too Much+written by+*refers to Search Toggle navigation activity Toggle Dropdown history discuss follow editors rules Toggle Dropdown common by group by name recent edit Toggle Dropdown content name type refresh children mates references out references in +*mates If there is a card named "X+3x09 The Girl Who Knew Too Much+written by+*refers to", then X is a mate of 3x09 The Girl Who Knew Too Much+written by+*refers to.