Exiles by Jane Harper

 Aaron Falk travels to Marralee in South Australia for the baptism of his godson, Henry Raco. The event was supposed to occur a year ago, but was postponed when a woman named Kim Gillespie disappeared after a local festival. Kim was a part of the Raco family for twenty-five years, so the mystery of what happened to her has hit them very hard. In addition, six years ago, a man named Dean Tozer died in a hit and run accident not far from where Kim was last seen. Is there a connection between the two events? Will Kim ever be found? In the final book of the Aaron Falk series, Harper writes a leisurely-paced puzzle that will have the reader invested until the end.