The police arrested Toby, took him away.

Chapter 35
THE STALKING TERROR

Roger left the laboratory. He located Grover. His recital amazed and stunned his cousin.

“Astrovox unconscious still. Ryder hovering in the balance. Toby in a cell.” Grover summed up. “Two attempts to reach you—and why? Can’t you think, Roger?”

“I’ve mauled my brain, but I just don’t see what I seem to be expected to know.”

“And the missing jewel,” groaned Grover. “Where is it?”

“I haven’t seen it since Clark put it in his pocket, in the temple, Grover.”

His cousin considered the matter as they took lunch in a quiet corner of an uptown restaurant.

“You lock up securely and make certain that the devices all work.” Grover said, as they separated, “I shan’t have to stay with the old man, because it isn’t expected that he will regain his wits for at least several days. I must go to the museum. Business has to go on. Then I will have a talk with Potts. We have given him what the French call a ‘white card’—a clean slate. But—I want to question him. He might have picked up the real gem. He could have realized what a find it was. He may not have discarded it. And while I hate to suspect him—”

“But he wasn’t there, today, when Doctor Ryder—”