Dubbed the "Indiana Jones of the art world", Arthur Brand is perhaps the world's greatest art detective. He has spent his life tracking down some of the most important stolen masterpieces, from Dalis to Picassos. Brand became famous in 2015 when he recovered two giant bronze statues that were among Adolf Hitler's favourites. He recounts his fascinating investigation in a new book, "Hitler's Horses: The Incredible True Story of the Detective who Infiltrated the Nazi Underworld". He spoke to FRANCE 24's Valériane Gauthier.