James Rollins 
Tracker 

In the medieval heart of Budapest, Captain Tucker Wayne and his war dog, Kane, rescue a mysterious woman fleeing three armed men. The secret she holds will unlock a terrible treasure, one steeped in blood and treachery, tied to a crime going back to the fall of Nazi Germany, and a heritage of suffering and pain that reaches out from the past to wreak havoc in the present.In a final showdown in the depths of a lost cemetery, truths will be unearthed, secrets exposed, and the fate of all will rest upon the shoulders of one man and a dog whose courage is beyond measure.Featuring an extract from BLOODLINE.