Slocum and the Orphan Express (Slocum Series #303)

Today's longest-running action-Western.

John Slocum...babysitter?

With a newborn he rescued in his arms, Slocum fights a running (one-armed) battle across the wastelands. He's made a promise to get the baby to safety--but along the way, he's going to sing some desperadoes a little hot lead lullaby.