Charlie was obviously hesitant to open the door, but decided that if he didn't, whoever it was probably wouldn't go away.
So, after opening the door, he saw that it was a delivery man, holding a package. He wanted Emily to sign for it.
When the man handed him the package, Charlie saw the sky change color. No, not now, he thought, right before he felt the changes take effect.
This time the color of the sky was ...