False Narratives。 Fake News。 Alternative Facts。 Propaganda。 Artificial Intelligence。 Junk Science。 In this post-truth age， John and Nancy wonder if some newly rediscovered Caravaggio masterpieces might actually be recently created fakes。 To find answers， they take readers along with them on two intertwined explorations where their own current-day exploits resonate all too ironically with crucial events in the celebrated painter's short violent life。 Without Provenance is the Petralias' third real-life travel adventure。 This one takes them to Italy， Barcelona， London， and Malta where they explore the dark side of the multi-billion dollar art Forgeries。