Cold Vengeance (Pendergast Series #11)

Twelve years ago, Special Agent Pendergast's beloved wife was murdered during an African safari -- and now, he's on a quest for revenge.

Devastated by the discovery that his wife, Helen, was murdered, Special Agent Pendergast must have retribution. But revenge is not simple. As he stalks his wife's betrayers--a chase that takes him from the wild moors of Scotland to the bustling streets of New York City and the darkest bayous of Louisiana--he is also forced to dig further into Helen's past....