“I was hoping you would stop by to say good night,” she whispered.

Pitt quelled an uneasy desire as he gazed into her needy eyes. “Negligence on my part,” he said with a smile.

He bent down and plucked her off her feet, holding her tight. She buried her head in his neck as he carried her down the narrow corridor and into her cabin. Setting her gently on the bunk, he leaned over and kissed her forehead.

“Good night, my dear,” he said softly. Before she could respond, he’d backed out of her cabin and closed the door behind him.

“Your cook is excellent,” Ann said to Gunn, now pushing away her empty plate while trying to change the subject.

“Food is a key element of shipboard morale, particularly on long voyages. We insist on highly trained chefs for all our vessels.” Gunn took a bite of toast and turned to Pitt. “Ann was just telling me how she put her college springboard experience to good use by diving from the bridge wing last evening.”

“I’d give her a 9.0.” Pitt winked. “Though I might raise my marks if she would dive into what this expedition was really all about.”

Ann gave a nervous cough into her napkin. “What do you mean?”

“We were searching for much more than just a missing boat, weren’t we?”

“It was important that we find the boat, and any equipment that was still aboard.”

“We succeeded on both counts,” Pitt said, “so how about you tell us something about that equipment?”

“I can’t disclose that.”

Pitt’s eyes narrowed. “Aside from nearly getting yourself killed, you also placed this ship and crew in danger. I think we’re entitled to some answers.”

Ann looked Pitt in the eye for the first time—and realized she couldn’t sidestep the issue. She gazed around the room to ensure no one was eavesdropping.

“As you know, Dr. Heiland’s company was engaged in a high-level research-and-development project for DARPA. His work was in support of a secret Navy submarine program called Sea Arrow. Heiland was specifically involved in the development of an advanced propulsion system. I really can’t tell you more than that except that he was doing some final prototype testing on a breakthrough development when his boat was lost at sea.”

“That was the item in the crate?”

“A scale model,” Ann said. “While there was a suspicion of foul play in the loss of the Cuttlefish, no one anticipated any interference with our search-and-recovery project. I’m truly sorry your crew was placed in danger. It was thought that the fewer people aware of Heiland’s research, the better. I know the Vice President wasn’t happy about keeping you in the dark, but he was forced to go along at the request of Tom Cerny.”

“So who were those guys who tried to steal it?” Gunn asked.

Ann shrugged. “A mystery, at the moment. By their looks, I don’t believe the men were from Mexico, but possibly Central or South America. I’ve already spoken to Washington and been assured we’ll have the Mexican authorities’ assistance in examining the two bodies and tracing the pickup truck.”

“We’ve provided a pretty good description of their boat to the Mexican Navy,” Gunn said.

“They don’t seem like the usual suspects for a defense-related theft,” Pitt noted. “Did you think they had already absconded with Heiland’s magic box?”

“Yes,” Ann said. “When the bodies of Heiland and his assistant were found, we presumed they had been hijacked at sea and the prototype stolen. That’s why I was so shocked to see the crate still secured aboard the Cuttlefish.”

“I guess you have Heiland to thank for that,” Pitt said. He described his discovery of the orange wires and hidden toggle switch. “I’m guessing that Heiland realized he was under attack and blew up his own boat.”

“The two bodies showed severe trauma consistent with a fire or explosion,” Ann said. “We never considered it was of their own doing, but that may need to be reevaluated now.”

“I think Heiland beat them to the punch,” Pitt said. “And, to make matters worse for the bad guys, the Cuttlefish sank in water too deep for conventional diving. They were probably scrambling to locate their own salvage ship when we showed up. So they let us raise it for them.”

Gunn turned to Ann. “Your high diving saved the day.”

“No, it was Dirk and Al who recaptured the crate. Though its destruction saved it from falling into the wrong hands, the loss of the model has magnified some other problems.”

“Namely?” Pitt asked.

“I’ve been told that neither DARPA nor the Navy have any detailed plans or design specs for Heiland’s work. Carl Heiland was a highly respected engineer—a genius, really—and because of that he was given free rein. Over the years he’s made many brilliant modifications in submarine design and torpedo development. As a result, he wasn’t required to submit the usual mountain of documentation demanded by most defense contracts.”

“So no one else knows how to complete the Sea Arrow?” Pitt asked.

“Exactly,” Ann replied with a tight-lipped grimace.

“With Heiland dead and his model destroyed,” Gunn said, “those plans would be extremely valuable.”

“Fowler tells me that is now our top priority.” She looked at her watch and then at Pitt. “The Vice President’s office has arranged a return jet for us to Washington. It leaves San Diego at one o’clock. I’d like to visit Heiland’s headquarters in Del Mar before we go. Could you drive me there on the way to the airport?”

Pitt rose from the table and offered Ann her crutches. “I never fail to heed the call of small children, little old ladies, or pretty girls with wrenched ankles.” He gave a slight bow. “Just show me the way.”

An hour later, they pulled into the headquarters of Heiland Research and Associates. The office occupied a shared building on a rise overlooking the beach town of Del Mar, just north of San Diego. The site offered a clear view of the ocean to the west, as well as Del Mar’s famed racetrack in the valley below. Ann flashed her credentials at the front desk and signed them in.

“Welcome, Miss Bennett,” the receptionist said. “Mrs. Marsdale is expecting you.”

A minute later, a stylish woman with short dark hair entered the lobby and introduced herself as Carl Heiland’s operations manager. As she led them to a nearby conference room, Ann followed awkwardly on her crutches.

“We won’t take much of your time, Mrs. Marsdale,” Ann said. “I’m on the team investigating the death of Mr. Heiland, and I am concerned about securing his working papers related to the Sea Arrow project.”

“I still can’t believe he’s gone.” The shock of Heiland’s death still marked her face. “I assume his death was no accident?”

“Why would you think that?”

“Carl and Manfred were just too competent to die in a boating accident. Carl was a safe and prudent man. I know he always had concerns about maintaining the secrecy of his work.”

“We don’t think it was an accident,” Ann said, “but the investigation is still ongoing. We do believe that someone was trying to acquire his test model.”

Marsdale nodded. “The FBI was here a few days ago, and we gave them what we could. But as I told them, this is Dr. Heiland’s business headquarters. We handle the government contracts and related admin support, and that’s about it. The entire firm employs only twelve people.”

“Where is your research facility?” Pitt asked.

“We don’t really have one. There’s a small shop out back, where we employ a few interns for ongoing research topics, but Carl and Manfred seldom worked here. They traveled frequently but actually conducted most of their research in Idaho.”

“Idaho?” Ann asked.

“Yes, there’s a Navy research facility in Bayview. Dr. Heiland has a cabin nearby, where he and Manfred would escape to problem-solve.”

“That would be Manfred Ortega, Dr. Heiland’s assistant?”