The Lonely Silver Rain (1985) is the 21st and final novel in the Travis McGee series by John D. MacDonald.

It is also notable for the introduction of McGee's daughter Jean, who he unwittingly sired with the now-deceased love interest Puss Killian from the ninth book in the series: Pale Gray for Guilt.

At the end of the book McGee has taken all of his cash in hand except for a few hundred dollars and placed it in a trust fund for his newly met teenage daughter, and needs to go back to work as a "salvage consultant."

It bounced high off the asphalt, an eight-inch curtain fringe of lonely silver rain.

The money recovered from McGee's "salvage consultancy" was from finding the Sundowner boat (which was renamed Lazidays) was $193,500, but then he gave $20,000 to a friend named Mick for assistance in the mission.