Billy Bob paused the video before Book could raise his hand.

'Do you recycle your frack fluid?' Book asked.

'Slick water. And no. Too d.a.m.n expensive.'

'What do you do with it?'

'Pump it down disposal wells.'

'What's a disposal well?'

'Deep salt-water wells. We dump everything from sewage to radioactive substances down those holes-'

'Like frack fluids?'

'-stuff the law won't allow to be disposed in rivers and streams. We got fifty-two thousand disposal wells in Texas, more than any other state.'

'Is that something to brag about? That we're putting more toxic chemicals into the earth than any other state?'

'Don't worry, Professor. The Railroad Commission regulates what goes down the hole.'

'Why doesn't that make me feel better?'

Billy Bob resumed the video.

'The whole process of developing a well typically takes from three to five months. A few weeks to prepare the site, four to six weeks to drill the well, and then one to three months of completion activities, which includes one to seven days of stimulation. But this three-to five-month investment can result in a well that will produce oil or natural gas for twenty to forty years or more.'

Billy Bob ended the video. He sighed wistfully. 'I love that movie.'

As if he had just watched Casablanca.

'I take it that video wasn't put out by the Sierra Club?' Book said.

'Marathon Oil. Put it on YouTube.'

Billy Bob Barnett seemed satisfied with his defense of fracking. But Book wanted him to continue, in the hope that he would over-talk, as guilty witnesses often felt compelled to do. Thus, another provocative question was called for, an inquiry that called into question the validity of his life's work, which is to say, his manhood.

'Billy Bob, is it really worth it?'

'Is what worth what?'

'Fracking. I mean, it's a huge environmental controversy, here and around the world. Is it really worth fighting over?'

Billy Bob's face registered an expression of absolute dis belief. He pointed at the screen on the wall.

'Did you hear what he just said? Twenty to forty years, Professor. Twenty to forty years of turning the lights on, cooking on the stove, heating and cooling your home, watching reality shows on TV ... twenty to forty years of electricity. Unless you want to live in the dark, it's d.a.m.n sure worth fighting for.'

His face glowed red.

'Why not solar and wind power?'

Billy Bob rolled his eyes. 'You liberals think the sun and the wind can do it all. They can't. Not yet. I want us to be energy independent, too, Professor, so I'm all for solar, wind, geothermal, hydro, you name it. Anything that'll get us off Muslim oil. And maybe in twenty or thirty years those technologies will be able to power the planet or at least America. But not today. Oil, gas, and coal supply eighty-five percent of our energy today. And we need energy today. Easy to sit in your ivy tower-'

'Ivory. Like the elephant tusk, not ivy like the plant.'

'Oh.' He rebooted his thought. 'Easy to sit in your ivory tower and preach your liberal politics, but what'll happen to America when the Muslims decide to sell their oil to the Chinese instead of us 'cause they'll pay more? When we don't have the energy to power our factories and light our homes? Our cars, trains, and planes? What happens to America then, Professor?'

Billy Bob stood and walked over to the U.S. map on the side wall. They followed.

'Current estimate is that we've got a hundred years' supply of natural gas in North America.' He pointed the cigar at shaded areas on the map. 'The big shale plays are the Horn River and Montney up in Canada, the Barnett-no relation-Eagle Ford, and the Woodford in Texas, Haynesville in Louisiana, Fayetteville in Arkansas, and the big daddy of them all, the Marcellus Shale. That one field covers ninety-five thousand square miles of New York, Pennsylvania, Ohio, and West Virginia, contains two-thirds of U.S. reserves.'

'I thought they put a moratorium on fracking in New York?'

Billy Bob nodded. 'Vermont, too, even though no one's found shale gas in the state. Said it was a show of solidarity. Goofy liberals.'

He now stepped to the world map and again used the cigar as a pointer.

'Shale gas has been found in northern UK and Europe-Poland, Austria, Sweden, Romania, Germany, France ...'

'Didn't the French ban fracking?'

He shrugged. 'They're French.'

Billy Bob pointed the cigar at other nations.

'China, they've got more recoverable shale gas than us, about thirteen hundred trillion cubic feet. Argentina, they've got almost eight hundred. Mexico, seven hundred. South Africa, five hundred. Australia, four hundred. And all that shale gas requires hydraulic stimulation. That's our technology. We're not outsourcing American jobs, Professor, we're creating American jobs by outsourcing our technology. Our hydraulic stimulation is taking over the world.'

'Like our fast food?'

'Except it's better for you. Gas is good, Professor.'

Billy Bob held up one finger.

'It's cleaner than coal and safer than nuclear. Right now we're using mostly coal-fired plants to generate electricity. We switch over to natural gas, greenhouse gases are cut in half. And we don't risk a Chern.o.byl or f.u.kushima.'

A second finger.

'It's cheap and abundant. The same amount of energy from gas costs one-fourth what it takes in oil to produce. And we've identified twenty-five thousand trillion cubic feet of extractable gas in the world-outside the Middle East. That's enough to power the world on natural gas alone for fifty years.'

A third finger.

'It's ours, not the Arabs'. Right now we're sending a trillion dollars a year to Muslims who want to kill us. We get off Muslim oil, we keep one trillion dollars a year, every year, here at home. It's simple: drill at home or get killed at home.'

A fourth finger.

'Jobs. The world is starving for jobs, Professor, and hydraulic stimulation provides jobs. Lots of jobs. But Ivory League-educated environmentalists-'

'No, that one is Ivy.'

'But you just said ... never mind. Liberal environmentalists drive around in their Priuses and don't give a d.a.m.n about the unemployed working cla.s.s. People are desperate for jobs. We got workers living in man camps in shale plays all over the country.'

'Man camps?'

'Trailers, cheap motels and rent houses, ten to twenty men living in each, because there's not enough housing in these boom towns. Men leave their families so they can work in South Texas or out here, send money home to Houston or Chicago, to mama and the kids like Mexicans send money home to Chihuahua. I guess we're all migrants when it comes to jobs.'

He added his thumb.

'And most important of all, Professor, shale gas is single-handedly causing a shift in the world's geopolitical balance of power.'

'How?'

'I'm fixin' to tell you how.' Back to the world map. 'Seventy percent of the world's conventional natural gas-that's everything except shale gas-is located in exactly two countries: Russia and Iran. What's that tell you?'

'G.o.d has an odd sense of humor?'

Billy Bob chuckled. 'That He does. What it tells us is that we can't let the bad guys control the world's natural gas supply like they do the oil supply. See, most of Europe is tied to Russian natural gas, the rest to Iran. So Putin carteled up with that loony b.a.s.t.a.r.d Ahmadinejad, put European countries in a political and economic vise. Remember back in oh-eight when Russia invaded Georgia-'

'The Russians invaded Georgia?' Nadine said. 'OMG, my aunt lives in Atlanta. Will she be okay?'

Billy Bob regarded Book's intern as one might Paris Hilton giving financial advice.

'She gets her news on Twitter,' Book said.

Billy Bob grunted. 'Anyway, the Euros, they opposed UN sanctions because they couldn't risk Putin cutting off their gas supply. Which is how Putin operates-he ain't selling gas, he's wielding a political sledgehammer. And he vetoes every UN sanction on Iran because they're partnered up, so Iran just goes merrily down the path to a nuclear weapon. And where does that path end? With Israel bombing Tehran back to the fifties. Which ignites the Middle East and puts U.S. troops on the ground again.'

'And shale gas can prevent all that?'

'd.a.m.n straight it can. Shale gas makes the U.S. energy independent and gives Europe the chance to tell Putin and Ahmadinejad to pump their gas up their-'

He glanced at Nadine.

'-where the sun don't shine. If they'll just go get it. Poland's got almost two hundred trillion cubic feet of shale gas-that's a two-hundred-year supply-and they're d.a.m.n sure going after that gas. But France, they're not, even though they've got a hundred-year supply. They'd rather depend on nuclear power. How stupid is that? Waiting for another f.u.kushima? But that's what happens when environmental socialists are making the decisions. They'd rather hand the world over to Putin and Ahmadinejad. They don't get it. This ain't about a frackin' well dirtying a little water-it's about the future of the G.o.dd.a.m.n free world!'

He caught himself.

'Hydraulic stimulation,' he said carefully. 'What happens then, Professor? What happens when no one in the world needs Russian or Iranian gas? When Putin can't tell the Euros how to vote at the UN? Putin's power drops with the price of gas. The UN pushes Ahmadinejad back under his rock. Which makes the world a safer place. A better place. The good guys win, and the bad guys lose. That's got to sound good even to a liberal.'

'I like it!' Nadine said. 'And I don't even know who Putin and Ack ... Achjim ... that guy are. His name probably has too many characters for Twitter.'

Billy Bob smiled at her, as if she were a precocious child.

'You're a pistol, Honeywell. You sure you don't want a job?'

'I'm sure.'

'All the donuts you can eat.'

'On the other hand ...'

Billy Bob turned back to Book and put the cigar in the air.

'And never forget, Professor-we are the good guys.'

'But we need clean water. And fracking is dangerous.'

Billy Bob shook his head with a bemused expression on his face. 'Liberals. G.o.d bless the children. Professor, people texting while driving is dangerous. Riding that Harley is dangerous ...'

'Amen,' Nadine said.

'... Life is dangerous. h.e.l.l, yes, drilling is dangerous. Accidents happen. Get over it. Or start riding a bike, and not that Harley. The kind you pedal.'

Billy Bob stepped over to another map that depicted a satellite view of the world at night. Most of North America was brightly lit. As were the UK, Europe, India, j.a.pan, and the perimeter of South America. But much of Russia and China was dark, as was all of Africa except the northern nations and South Africa. It was a telling view of the world.

'You want to live with light or in the dark? You don't get light without electricity. You generate electricity with oil, coal, nuclear, or natural gas. Pick your poison, Professor.'

He turned his hands up.

'Gas is the best choice, and shale gas gives us that choice. The world needs to cut carbon emissions, the world needs a bridge from oil to alternative energy sources, the world needs to get off Middle Eastern oil and Russian and Iranian gas ... Shale gas does all that and more. Is it perfect? No. But what is? But shale gas makes for a more perfect world. It's a no-brainer, Professor, even for a liberal like yourself.'

He stepped over to the desk, grabbed the thick doc.u.ment under the handgun-lighter, and returned. He handed the doc.u.ment to Book then gestured with the cigar.

'Don't take my word for it, Professor. Take MIT's word. And Harvard's. And the Baker Inst.i.tute at Rice. Read their reports on shale gas and geopolitics. I'm not making this stuff up.'

Nadine raised her hand.

'You got a question, Honeywell?'

'Where's the girls' restroom? Coffee goes right through me. Sorry, that's an over-share.'

'Down the hall, past the donuts.'

Nadine pivoted and walked to the door; Billy Bob's eyes followed her out.

'Boy, I'd sure like to have her on my payroll.'

'She's my intern.'

'Keep your p.r.i.c.k out of the payroll-I learned that lesson the hard way. Several times. You know, it's outrageous what a gal can get for s.e.xual hara.s.sment these days.'

He chuckled then walked around his desk and sat in his leather throne. Book took his seat again. Billy Bob chewed on the cigar and regarded him.

'Professor, why do you care so much about Nathan Jones?'

'I owe him.'

'You rode that Harley four hundred miles just because you owed Nathan a favor?'

'Because he wrote me that letter.'