Dio Brando
It is later revealed in part 6, Stone Ocean, that Dio had written a diary that contained "The path to Heaven" (Instructions on how to attain "Heaven"), Jotaro discovers this, reads its contents and then burns it. Father Pucci, wants to find the contents of this book, in order to evolve his stand C-Moon, an evolved version of his initial stand Whitesnake, into Made In Heaven (MIH).