Board Thread:Legitimate Canon Questions/@comment-24375745-20140116034740/@comment-4091815-20140116043010

All three characters who "died" are being haunted by fears.

Allison is afraid she'll turn killer like her aunt.

Stiles is afraid he'll never wake up.

Scott is afraid of losing control and becoming a monster.

All of these fears have manifest in the real world, with Allison slipping into a dream state and then awaking to find herself trying to kill her friends. First, in Anchors it was Lydia with an arrow then in More Bad Than Good, she found herself pointing the gun at Isaac Lahey.

Stiles fear is manifesting in his inability to read and constant feeling of unreality.

Scott lost could not control his transformation at school and again when his father made him angry.

If Scott transforms he isn't sure he can control his actions and isn't sure he could turn back.