Looking for a good book (or two, or three)

As seen elsewhere in the blogosphere, it's "Buy a Book, Save the World" time, and I need your help.

Since my TBR stack is taller than I am, I thought I'd buy a book for my sister, whose TBR stack is considerably smaller. She's primarily a mystery reader, and is always looking for new authors.

So who's read a good mystery lately that you'd like to recommend? Her favorite author is Michael Connelly, if that gives you any clues, and she prefers to steer away from horror (a la Dean Koontz.)