"What?" the girl gasped.
Ronson turned to Crick. "Do you have an extra gun?"
"Of course. But, Jim—"
"Lend it to me, will you? I may need it before I'm finished here."
"Eh?" Crick was startled.
Ronson explained what he meant. Crick's face grew grim. He took an extra needle gun out of his coat pocket. "I guess maybe you could use a little help on this job, Jim. Eh, Jennie?" He glanced at the girl.
Fear was on her face. She wanted to run, to get away, forever, from this place of horror. But some things were more important than running.
"We'll make it a threesome," she said.
"Good girl!" Ronson spoke.
A passage circled the oval cavern. With Ronson in the lead, they followed it until they came to the spot from which the radiations were being poured into the cavern. Here was a large room. The passage led directly into it.