Sing, Zigeuner, sing ... [Gypsy in Amber.]

Blurb

Gypsy in Amber is a 1971 mystery novel by Martin Cruz Smith as "Martin Smith". It was first published on January 1, 1971 through Putnam and was Smith's second novel and first mystery novel.
Gypsy in Amber was nominated for an Edgar Award. The novel was optioned for a television series in 1974 with the title Roman Grey. A pilot episode was filmed but not picked up for a full series. The pilot episode was aired as a TV movie entitled The Art of Crime and was poorly received.