It was into this city Rocky Russell's investigations now led him. He glanced at his wrist chronometer.
"Bless my soul! Very nearly time for my appointment with Factor Grossman. You are sure we can use a roller, Miss Graham?"
"Positive," answered the girl cheerfully. "I asked Daddy yesterday. You wait here; I'll get it and come back."
She moved away, giving the two S.I.D. men their first moment of privacy in hours. Bud Mulligan sighed and fumbled for a cigarette.
"So we're really gonna get to see Grossman at last? Good! How'd he sound when you audioed him for an interview?"
"Friendly enough," answered Rocky. "He said he was very busy, but he'd be glad to give me a few minutes."
"Did he know what you wanted?"
Rocky grinned a slow, lopsided grin. "Everybody on Titan knows by now," he d
