Sugar and Spike and Spike" series...is the most charming thing I've ever seen in comics." DC attempted to license "Sugar and Spike" as a syndicated newspaper strip but was unsuccessful. Sales on the "Sugar and Spike" issues of "The Best of DC" were strong enough that DC announced plans for a new ongoing series featuring the characters. The project was never launched for unknown reasons. Mayer had an agreement with DC that no one else could write Sugar and Spike. However, they have occasionally made cameo appearances in modern comic books. They are rescued by the underwater heroine Dolphin in "Showcase" #100. They
American comic book Kane and Bill Finger created Batman, who debuted in "Detective Comics" #27 (1939). The period from the late 1930s through roughly the end of the 1940s is referred to by comic book experts as the Golden Age of comic books. It featured extremely large print-runs, with "Action Comics" and "Captain Marvel" selling over half a million copies a month each; comics provided very popular cheap entertainment during World War II especially among soldiers, but with erratic quality in stories, art, and printing. In the early 1940s over 90 percent of girls and boys from seven to seventeen read comic books.