User blog comment:TheOriginalVampireKlaus/Lydia may be the reptilian shifter/@comment-1382861-20120616172019/@comment-4798330-20120618161858

Actually I have to disagree. I think the creature was about to attack. The creature had crouched down when it saw Allison. That was the same thing it did when it saw Isaac's father. You did see what it did to him, did you not? It also crouched down when it saw Allison. The only reason it did not attack was because it saw Scott.