DEADLY ADDITIVE, by Donn Taylor

Donn Taylor's book, Deadly Additive, is a roller-coaster ride of excitement. I don't normally gravitate toward Action/Adventure novels, but as a fan of Taylor's writing. I knew I'd like this one.
He mixes switched identities, loathsome bad guys, and an appealing hero and heroine into a hard-to-put-down novel. The action ranges from the tropics to the northern United States, and in every case