"Let go of me!"
"No—you're coming back!"
She twisted in his grasp. "Let me go!" she sobbed and broke into a fit of coughing worse than before.
"What I was trying to say," Dr. Kramer said into the silence that followed, "is that if you have Thurston's Disease, you've been a carrier for at least two weeks. If I am going to get it, your going away can't help. And if I'm not, I'm not."
"Do you come willingly or shall I knock you unconscious and drag you back?" Kramer asked.
She looked at his face. It was grimmer than she had ever seen it before. Numbly she let him lead her back to the laboratory.
"But, Walter—I can't. That's sixty in the past ten hours!" she protested.
"Take it," he said grimly, "then take another. And inhale. Deeply."
"But they make me dizzy."