<p>Seeing Peyton look and seem human in the time jump plus Liv offering her an chance to live on Zombie Island which population is all Zombies. It's very obviously that she ate little part of Darcy's brain which gave her the death vision before Peyton return to her human status because just like anyother food and medince that brain had to pass through her system. I know Blaine sold Darcy's brain to some guy who didn't want be a zombie anymore, but he kept some pieces to himself since those other kids he had were intially recused from him by Major. </p>

<p>^ Ditto  </p>

<p>Peyton saw who the woman was though, so it couldn't have been Darcy's brain? I think it was the guy who helped capture the kids, the guy with the beard who helped Candy escape and shot Payton. Payton shot him back and I reckon Blaine gave her his brain. He was probably with Blaine when he killed Darcy. Peyton then got cured by Ravi who cured everyone else (those who wanted to be cured anyway) </p>

<p>I think this last theory is more likely. Darcy's brain was scheduled to be sold, which surely happened in the time frame between her death and Peyton turning zombie - consider that Blaine and Don E were looking for Ravi for several days until they managed to break into the safehouse. </p>

<p>But did Peyton have a vision at all?  Why would Blaine murder Darcy, she was a dead girl walking anyway - why not let her marry Don E for the fun of it?  Peyton is a lawyer and a sharp one at that, couldn't she have just said she had a vision to set Don E at Blaine and see what happened. </p>

<p>From the looks of it, Peyton did have a genuine vision, Don E actually being excited about it. While she may have managed to fake the blank stare, it's highly unlikely she could have gotten any info on Darcy otherwise. As for Blaine killing Darcy, well I think, it's all about the money. Ever since he got busted by Al (the reporter) he seemed desperate to get his finances back one way or the other. At the time Don E and Darcy wanted to Marry, the Freylich kids had just been rescued by Major and Ravi so there was no other source of income for Blaine. Darcy's brain was simply the only thing he had left to sell. </p>