“It is,” Stone said, and he looked back at Beam again. The agent was standing, leaning against the door, sweat pouring down his face. He unbuttoned his jacket as if to make his weapon more accessible.

Stone got up and walked down to where Dino was sitting. “Got a minute?” he asked. Dino got up and followed him to the side of the box. “What’s up?”

“Something’s wrong,” Stone said. “Keep looking at the theater while we talk. Agent Beam is extremely nervous and is sweating heavily. Also, he’s the only agent in the box with us—we’ve always had at least two in the room—and he locked the door behind him and put the key into his coat pocket. That doesn’t seem to me like someone who is protecting us from an attack.”

“No,” Dino said, “it sounds more like someone who is a threat. What do you want to do?”

Stone told him. “Let’s wait until the program starts.” They returned to their seats as the Los Angeles Philharmonic began to play an overture as the last stragglers got to their seats.

“Ladies and gentlemen,” a voice boomed, “Miss Hattie Patrick and the Los Angeles Philharmonic Orchestra.” There was loud applause as Hattie walked to the piano at the center of the stage. She sat down, the conductor raised his baton, cued the first clarinetist, who began a trill, then executed the glissando that began Gershwin’s Rhapsody in Blue. She had performed it once before in this venue.

Stone leaned back and looked at the back of Dino’s head down the row. Dino leaned back, saw him, and nodded. They both got up and went to their respective sides of the box, then walked to the rear and approached Beam from each side. Stone smiled as he neared the man. “I have to leave the box,” he said.

Beam looked alarmed and his hand slid under his jacket. Stone grabbed the man’s wrist and kept him from producing the weapon while Dino drew his pistol and held it under Beam’s chin. “Be very quiet,” Dino whispered into his ear.

Stone separated the man’s hand from his weapon and withdrew it himself. To his surprise, he found it had six inches of silencer screwed into the barrel. “Be very still,” he whispered to Beam as he felt in his coat pocket for the key to the door. He found it, then spun Beam around and used the man’s own handcuffs to secure his hands behind his back.

“Keep him here for a moment until I speak to the agents outside.” Dino nodded. Stone unlocked the door, let himself out, and looked around. No agents in sight. Where were the four who had accompanied the tram here? He got out his cell phone and called Mike Freeman.

“Freeman.”

“Mike, it’s Stone. We’ve got a situation at the presidential box. Do you see any Secret Service?”