Cry in the Night -- Carolyn Hart

I didn't know when I picked this one up to read it that Carolyn Hart was about to be named a Grand Master by MWA.  It was a great choice, and it was a nice coincidence that I  happened to be reading A Cry in the Night.  

Sheila Ramsay is an Egyptologist, but when the museum she works for gives her an opportunity to return a valuable Aztec to a family in Mexico City, she jumps at the chance.  Not because she wants to study the Mexican pyramids but because she met an angry but fascinating young man at a conference and hopes to see him again.  

You won't be surprised to learn that when she arrives in Mexico City, she discovers that things are not what they had seemed.  The family she stays with has secrets (there's that cry in the night), but there's worse.  Someone's threatened to kill her, and she has no idea why.  All she's done is deliver the manuscript, even the family doesn't seem much interested in it, nor does anyone else.

Throw in lots of local color, a generous helping of romance, and a twisty plot that involves a hugely valuable treasure.  Hart mixes them all into a fast-moving story that shows her mastery.  If you're thinking it's a cozy, you're thinking wrong.  Check it out.