Talk:The Liars/@comment-24744351-20140524044549/@comment-109.207.61.183-20140611211950

She is. It was confirmed by Oliver.

Liars are not group of friends, they are group of girls who are stalked by A's and worked to know his/her identity. Mona was once, so she is 6th Liar, even thought she is not friends with the rest of the girls.