Henry Carter Hull

They call them Travelers. They move from city to city, panhandling, committing no crimes -- they just like to stay on the move. And now somebody is killing them. Lucas Davenport's adopted daughter, Letty, is home from college when she gets a phone call from a woman Traveler she'd befriended in San Francisco. The woman thinks somebody's killing her friends, she's afraid she knows who it is, and now her male companion has gone missing. She's hiding...

"After the events in Gathering Prey, Lucas Davenport finds himself in a very unusual situation--no longer employed by the Minnesota BCA. His friend the governor is just cranking up a presidential campaign, though, and he invites Lucas to come along as part of his campaign staff. "Should be fun!" he says, and it kind of is--until they find they have a shadow: an armed man intent on killing the governor. and anyone who gets in the way"--