A novel series by
Bryon Smith
Since Bryon began writing in high school in 1970 he's written science fiction & fantasy about flying talking cars alien beings and a mix of super hero types both with and without special powers.
Before the KITT car on the TV series Night Rider Bryon had one. Before the Super Bike series he had one. Certainly the stories are different but some of the ideas were similar.
A colony of earth based aliens known as Sarans, merpeople farmed the ocean's floor.
The "Mystery Man" Richard King, a former DEA officer, murdered and left for dead in the desert. Reappears years later to find out what happened to set things right. His looks has changed somewhat but he hasn't aged a day.