“My first impression was that it resembled the Manta, the sub that the Navy developed for mine detection and destruction.”

“Not a bad call,” Zavala said. “Here’s the Manta. There are some of the same features that you get when you have a computer-generated design. But your guy didn’t have the launching pads for mini mine sniffers and torpedoes like the Navy’s model.”

“Good thing. Neither one of us would be here if our little friend had been armed with the hard stuff.”

“After I breezed through military models, I went to scientific applications. Most of the AUVs I found are torpedo-shaped, like Woods Hole Oceanographic’s ABE or Scripps’s Rover. After ruling out military and scientific, I looked to industry. But oil, gas, and communications didn’t pan out, so I tried commercial fishing.”

He called up an article from a commercial-fishing magazine.

Austin looked at the photos with the article and smiled.

“Jackpot,” he said.

“The vehicle in the magazine piece is used to film experimental fishnet designs,” Zavala said.

“That would account for the manta shape,” Austin noted. “You’d need something flat and smooth to get under the nets, no projecting fins that might catch.”

“The pincers allow the AUV to cut its way through tangled nets,” Zavala said. “It was used by a Chinese company, Pyramid Seafood Exports.”

“Chinese? That’s significant. The men who attacked the ship were Asian. The weapons they carried were Chinese.”

“I Googled the name,” Zavala said. “Pyramid is headquartered in Shanghai, but they’re a global company.”

Austin said, “Why would a legitimate fishing company be involved in the attacks on the Beebe and the bathysphere?”

“I may be able to answer that question after seeing my friend Caitlin Lyons at the FBI’s Asian Crime Unit later today,” Zavala said.

Austin had to admit that Zavala’s wide network of women friends sometimes came in handy.

“Have you figured out how the attack on the B3 may have been set up?” Austin said.

“The vehicle could have been launched from any of the press and party boats watching the dive,” Zavala said.

“Maybe someone saw the launch,” Austin said. “We could get Detective-Superintendent Randolph and the Bermuda Coast Guard to ask around.”

“That’s not a bad idea, but my guess is that the vehicle went into the water hours before the bathysphere dive and was put into a sleep mode, programmed to wake up after a certain time to begin the hunt. It could have been directed from the surface, in the general area of the Beebe.”

“How would it have picked its target?”

“Sonar combined with the optical sensors would look for a vertical line. The AUV homes in on the B3’s tether. Snip-snip. There goes the bathysphere.”

“And there goes Doc Kane and the mysterious research project that was going to affect everybody on the planet.”