 With issue #16 (July 1963), the cover title dropped its "The" and became simply "Fantastic Four".While the early stories were complete narratives, the frequent appearances of these two antagonists, Doom and Namor, in subsequent issues indicated the creation of a long narrative by Lee and Kirby that extended over months.According to comics historian Les Daniels, "only narratives that ran to several issues would be able to contain their increasingly complex ideas".