A member on Roamers and Lurkers posted this very interesting speculation thread about Carol and that little girl following her around in the trailer. Here: http://www.roamersandlurkers.com/topic/9073-carol-and-the-little-girl-theories/

What do you all think? Could she be a replacement for Sophia? Is she up to no good and Carol is trying to 'help' her to try and make up for not being able to help Sophia?