"I'm very perplexed," Maria Teresa Fiorio, the former director of the castle's collection, told Corriere della Sera. "A serious scholar doesn't produce an e-book – they would publish their findings in the appropriate journals. Everyone who has studied the collection has asked themselves – is it possible that some were drawn by Caravaggio? No one has drawn that conclusion." The director of the castle collection, Claudio Salsi, also said the art historians' conclusion was "without critical foundation".