W.I.C.K.D sent her up as a variable, to see if he would recognise her, to see if he would protect her, save his sister, when Holli arrives in the Glade without any memories, she is instantly drawn to one particular glader, Newt, who seems to be particularly protective over her, they realise that they are brother and sister, but when new greenie Thomas comes up, the game becomes a whole lot more dangerous.