Texas Walt Hatfield sauntered in, flicking sawdust off his boots with his bandanna, as Isaac Bell arrived scraping metal shavings off his. Both men were dressed to work in guise, Hatfield in cowboy gear and Bell in flying machine helmet and goggles, with a wide motorcycle belt cinched around his waist.

Hatfield reported nothing new or suspicious in the penthouse cinematography studio stages atop the Imperial Building. Bell had little to add. The picture taking for The Brewer’s Daughter had been wrapped up this afternoon, and he had already been offered another job by the same Imperial director on an as-yet-untitled picture involving a motorcycle and a runaway freight train.

“Let me ask you something, Walt.”

“Shoot,” said Walt, suddenly all ears because Isaac Bell did not usually preface questions with “Let me ask you something.” Something out of the ordinary was on the chief investigator’s mind.

“At any time when you are up in that studio, did you get a funny feeling?”

“What sort of funny feeling?”

“That you were being…” Bell stopped talking and looked the tall Texan in the face. This was not a question he would ask most detectives. But Walt Hatfield was a natural-born hunter who had been raised by Comanche Indians. Of the Van Dorns Isaac Bell had worked with, Hatfield was by far the most sensitive to his surroundings.

“Watched?” asked Hatfield.

“You did, didn’t you?”

“Shore did feel watched, now that you mention it. Didn’t pay it much mind at the moment, what with fellows cranking cameras.”

Bell’s eyes were suddenly burning.

“You, too, Isaac?”

“I had a feeling.”

“Where?”

“The recording room on the fourth floor.”

“How about in Clyde’s laboratory?”

“Possibly there, but not as strong a sensation.”

“Reckon someone’s peeping through a judas hole in the room next door?”

“One way to find out.”

Bell stepped across the hall to see Larry Saunders, the recently promoted head of the Los Angeles office. Saunders, a trim, stylish man, wore a white linen suit like Bell’s, for the warm city. But unlike Bell’s, which was artfully tailored to conceal a good-sized automatic and a spare magazine, with room for a sleeve gun and pocket pistols when the occasion called for it, Saunders’s suit was cut so tightly that the Los Angeles detective would be hard-pressed to hide a weapon larger than a stiletto. Saunders’s hat rack held a white derby and several silk scarves. The derby, Bell hoped, had room for a derringer. Saunders’s patent leather pumps certainly did not.

“Larry, who would you recommend I send over to City Hall to inspect the architect’s plans for the Imperial Building?”

“Holian.”

“I think I’ve met him. Big-in-the-belly fellow who looks like a saloonkeeper?”

“He’s the one, though I’ve seen Tim do a credible job of imitating a brothel bouncer, too.”

“I don’t want this getting back to the owner of the building.”