The economic miracle of the 1990s transformed Ireland from one of Europe’s poorest countries into one of its richest, but with prosperity came an even greater appetite for narcotics, especially cocaine and Ecstasy. The old crime bosses gave way to a new breed of kingpins who waged bloody wars over turf and market share. Where once Irish mobsters used sawed-off shotguns to enforce their will, the new gangland warriors armed themselves with AK-47s and other heavy weaponry. Bullet-riddled bodies began to appear on the streets of the housing estates. According to a Garda estimate in 2012, twenty-five violent drug gangs now plied their deadly trade in Ireland. Several had established lucrative ties to foreign organized crime groups, including remnants of the Real IRA.

“I thought they were against drugs,” said Gabriel.

“That might be true up there,” said Keller, pointing toward the north, “but down here in the Republic it’s a different story. For all intents and purposes, the Real IRA is just another drug gang. Sometimes they deal drugs directly. Sometimes they run protection rackets. Mainly, they extort money from the dealers.”

“What does Liam Walsh do?”

“A little of everything.”

Rain blurred the headlamps of the evening rush hour traffic. It was lighter than Gabriel had expected. He supposed it was the economy. Ireland’s had fallen farther and faster than most. Even the drug dealers were hurting.

“Walsh has republicanism in his veins,” Keller was saying. “His father was IRA, and so were his uncles and brothers. He went with the Real IRA after the great schism, and when the war effectively ended he came down to Dublin to make his fortune in the drug business.”

“What’s his connection to Quinn?”

“Omagh.” Keller pointed to the right and said, “There’s your turn.”

Gabriel guided the car into Kennelsfort Road. It was lined on both sides by terraces of small two-story houses. Not quite the Irish miracle, but not a slum, either.

“Is this Ballyfermot?”

“Palmerstown.”

“Which way?”

With a wave of his hand, Keller instructed Gabriel to continue straight. They skirted an industrial park of low gray warehouses, and suddenly they were on Ballyfermot Road. After a moment they came upon a parade of sad little shops: a discount department store, a discount linen store, a discount optician, a chip shop. Across the street was a Tesco supermarket, and next to the supermarket was a betting parlor. Sheltering in the entrance were four men in black leather coats. Liam Walsh was the smallest of the lot. He was smoking a cigarette; they were all smoking cigarettes. Gabriel turned into the Tesco car park and eased into an empty space. It had a clear view of the betting parlor.

“Maybe you should leave the engine running,” said Keller.

“Why?”

“It might not start again.”