May 25th excerpt:

Dean shook his head. “Sure, we’re stronger,” he agreed. “But our adopted mom, Mallory, wasn’t close to as strong as us or Walt.” He hovered a hand close to his chest, indicating her height. “She didn’t have as much luck as us or Walt when she got out of the house to get supplies, but she did manage to throw it up.”

Jacob stared for a second longer at the height Dean had indicated. Their adoptive mother was absolutely tiny. Sam and Dean were already small, but this woman couldn’t be much more than three inches by Dean’s measure. 

He tried to think about what he knew of the family they had back at that motel. He hadn’t heard much about them at all, and with a small shred of guilt Jacob understood why. They’d be protective of them; Sam and Dean were just like that.