Wolf kicks off when a vagrant — the Walking Man — finds a dog wandering alone with a scrap of paper with the words “HELP US” attached to its collar. He’s sure it’s a desperate plea from someone in trouble and calls on Detective Inspector Jack Caffery to investigate. Caffery is reluctant to get involved — until the Walking Man promises in exchange new information regarding the childhood disappearance of Caffery’s brother. Caffery has...

Four friends, recent college graduates, caught in a terrible job market, joke about turning to kidnapping to survive. And then, suddenly, it's no joke. For two years, the strategy they devise -- quick, efficient, low risk -- works like a charm. Until they kidnap the wrong man. Now two groups they've very much wanted to avoid are after them -- the law, in the form of veteran state investigator Kirk Stevens and hotshot young FBI agent Carla Windermere,...

Treasure-hunting team Sam and Remi Fargo's search for a Romanov fortune brings them into perilous contact with an ambitious neo-Nazi clan... In 1918, a ransom of enormous size was paid to free the Romanovs from the Bolsheviks, but, as history knows, the Romanovs died anyway. And the ransom? During World War II, the Nazis stole it from the Russians, and after that -- it vanished. Until now. When a modern-day kidnapping captures the attention of husband-and-wife...

"In Texas's Big Bend country, every man has a price. For crime lord Harry Holland and his ruthless gang of cutthroats, that price is $20,000--a ransom demand for the kidnapped daughter of a retired Army colonel. So far, neither the Army nor the Rangers have been able to penetrate Holland's guarded fortress. In desperation, the colonel turns to the Jackals. As a longtime friend, retired cavalry sergeant Sean Keegan is determined to bring the man's...

The skies above London hum with danger. And in the Channel, enemies lie in wait.... Autumn, 1917. London is not the city that Dr. John Watson and Sherlock Holmes once bestrode like giants. Terror has come from the sky, and Londoners are scurrying underground in fear. Then a twin tragedy strikes Watson. An old friend, Staff Nurse Jennings, is on a boat-ambulance torpedoed in the Channel with no survivors. And his concert-going companion, Sir Gilbert...