No proof.
I can't let Walt die! she thought. He's the only proof I have. He's the only one who can convince anyone of the invasion.
He's got to live! she thought. I've got to get him to a hospital.
Walt's face was bloodless.
"... he's dying," the farmer said.
"But he can't die!" Julia cried desperately. "He can't die!"
"You're crazy," the farmer said evenly. "First you get ready to brain him with a tire iron and then you say he's got to live. Lady, if I hadn't stopped you when I did, he'd be dead as hell right now."
"I wasn't thinking; I didn't realize...."
Breath rattled in Walt's throat.
"Gas ... I'm out of gas," Julia said.