If Juan could pin down exactly how long a moment lasted, that’s how long it took for the door to swing open.

“Yes?”

Professor Tennyson had gained some weight since the photo Cabrillo had seen was taken. His face was fleshier, but with a healthy glow. Atop his head he wore a wide-brimmed straw hat, and he sported rubber boots and had a pair of gardening gloves tucked into his belt. That he’d left a trail of dirty footprints from his open back door and across the polished cherry floor of his living room was lost to the man.

“Professor Tennyson?”

“Yes,” he repeated. “May I help you?”

“I certainly hope so, Professor. My name is John Smith, and I’d like to talk to you about Nikola Tesla.”

Tennyson blinked and looked a little guarded. “Are you writing a book?”

“No, sir. I’m doing research purely for myself.”

“And what do you do, Mr. ah . . . ?”

“Smith, Professor Tennyson. John Smith. I’m an analyst with a think tank that consults with the government on foreign policy and security.” This could go one of two ways, he thought. Either Tennyson would abhor anything to do with the government and would shut him out or he would like the opportunity to talk about his favorite subject no matter who was listening.

“Security, eh? Are you one of those people who believe that some aspect of Nikola’s work could be turned into a weapon?”

“Actually, sir, I’m here to make sure someone else hasn’t already done it.”

That seemed to pique Tennyson’s interest. He opened the door fully. “Sure, we can talk, for a bit, but it will cost you.”

Judging by the size and age of the house, Tennyson didn’t look like he was wanting for money, so the comment threw Cabrillo until the man went on.

“I’ve cut down a small elm tree out back, but I’m afraid I’m not up to the task of digging out the stump. A strapping young man such as yourself can have it out in no time.”

Juan grinned. “I think we have a deal if you let me use your restroom first. It’s been a long drive.”

“You drove all the way from D.C.?”

“I’m based in New York,” Cabrillo said as he stepped into the house. The furnishings were spotlessly clean and looked as if they were the original contents of the home. An ornately carved banister rose up to the second story. Juan noted that, as in many homes of this era, there were two-foot-square grates set between the floors to allow heat from the main hearth to reach the bedrooms above. To the right of the entrance was a hallway with a small table next to the door that would lead to the garage. He saw that the bowl sitting on the spindly legged table appeared to be an antique Tiffany.