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
Silver Age of Comic Books over alleged links between comic books and juvenile delinquency, focusing in particular on crime and horror titles. In 1954, publishers implemented the Comics Code Authority to regulate comic content. In the wake of these changes, publishers began introducing superhero stories again, a change that began with the introduction of a new version of DC Comics' The Flash in "Showcase" #4 (Oct. 1956). In response to strong demand, DC began publishing more superhero titles including Justice League of America, which prompted Marvel Comics to follow suit beginning with "Fantastic Four" #1. A number of important comics writers and artists contributed to