Black Dragon - Kirk Mitchell
This is a mystery story with a very specific appeal. Although it's entertaining enough to be a quick airport-type read, it more targets those interested in the Japanese-American internment camps (& possibly people who like to drive from Manzanar to San Francisco - don't laugh, I'm one!)
That said, this is a love story with insight into the Internment Camp experience.
I love this book and have probably bought 5 copies of it over the years.