July 14th excerpt:

Sam spotted the look on Dean’s face, and his white-knuckled grip on the wheel. “Why don’t you turn on some Metallica?” he hissed quietly, remembering something Dean had confided in him long ago. A way to calm down.

Dean scrunched his eyes open to respond and immediately wished he hadn’t as the car lifted off the ground, out of control of either brother. Jacob was now in control, completely.