"Well, I do know. And if you think that I'm—"
"What do you want me to think?" he asked her. "What were Grant's last words?"
"He—"
"Accused you!"
Jenna turned quietly. She stopped at the door. "I solved one fuse because I thought Martian," she said quietly. "I'll solve the next one for you! You've wanted to be free to join the Corps in space. Then follow me close, because when I solve this one there will be no question."
"Jenna—what is it?"
"It is the fuse itself," she said. "A rudimentary brain that reacts upon receiving any thought of removal when that thought originates within a hundred feet or so."
"Utterly fantastic!"
"Is it?" she asked. "Watch!"