"Rhine," he said. "You'll come with me?"
"Of course," she told him.
His suspicion returned vaguely. "Tell me," he pleaded, "Is it because you know that there is no return for you or—"
"Sol is menaced," she replied simply. "Sol must be saved and you are the only man in the world that can do it. I want Sol saved."
"But why?" he demanded.
"Because," she replied.
Carroll shook his head. Question and answer were pat. Human, alien, animal, vegetable or mineral—the same question and the same answer!
Rhine chuckled again. "Beat it," she said. "But leave the teleport running. I'll be through as soon as I'm dressed."
He nodded, arose and went through the teleport. Rhinegallis followed him in about ten minutes and once more they were in the laboratory of Carroll's Wisconsin home.