Dance of Death by Douglas Preston and Lincoln Child

What an amazing book!!  The way these two work together is great!  Pendergast is trying to outwit his brother and gets many people involved, working for and against him.  D'Agosta is helping him as much as he can and looses much, but never his faith in Pendergast.  The book just keeps you going and going.  I was surprised when it ended.  It did not leave me hanging like the last one, but I really want to know how this story will progress.  This is a series that you really need to read in order to feel the continuity and have feelings for everything that builds and builds with the characters.  A wonderful and exciting series.