Books like Sanctuary

A diamond dealer and his entire family have mysteriously disappeared from their sprawling Las Angeles manor, leaving the estate undisturbed and their valuables untouched. Investigating detective Decker is stumped--faced with a perplexing case riddled with dead ends. Then a second dealer is found murdered in Manhatten, catapulting Decker and his wife, Rina, into a heartstopping maze of murder and intrigue that spans the globe...only to touch down dangerously in their own backyard.