Travis Roan and his dog, Bear, are hunters: They travel the world pursuing evildoers in order to bring them to justice. They have now come to Kansas on the trail of Rudolph Bormann, a Nazi doctor and concentration camp administrator who snuck into the U.S. under the name Rudy Goodman in the 1950s and has at last been identified. Travis quickly learns that Goodman has powerful friends who will go to any length to protect the Nazi; what he doesn't know...

Suffering public contempt after the Metropolitan Police's failure to capture Jack the Ripper, Walter Day, a member of Victorian London's recently formed "Murder Squad," partners with Scotland Yard's first forensic pathologist to track down a killer who is targeting their colleagues.

Hunting down four escaped convicts in late-19th-century London, Walter Day, Nevil Hammersmith and their colleagues from Scotland Yard's Murder Squad race against time to prevent attacks on their families, an effort that turns more violent when Jack the Ripper joins the gang.

"Sadie Grace is wanted for witchcraft, dead (or alive). And every hired gun in Kansas is out to collect the bounty on her head, including bona fide witch hunter Old Tom and his mysterious, mute ward, Rabbit. On the road to Burden County, they’re joined by two vagabond cowboys with a strong sense of adventure – but no sense of purpose – and a recently widowed schoolteacher with nothing left to lose. As their posse grows, so too does the danger....