Danielle Rousseau kept several maps and notes that she had made or acquired during her 16 years on the Island, containing diagrams, maps, equations, and various notations. Sayid, after escaping imprisonment at Rousseau's camp, took the maps and notes with him back to the survivor's camp. ("Solitary") He recruited Shannon to help translate the French notations that accompanied the mathematical equations on the maps and notes. Some of the notations that originally appeared to Shannon to be gibberish were later tranlsated as lyrics to the song "La Mer", from an animated children's movie. ("Whatever the Case May Be") Sayid retained possession of the pages, excepting a brief period during which Hurley took some of them, until he left the Island. ("There's No Place Like Home, Part 2") ("Numbers