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
Bronze Age of Comic Books later that year to allow the portrayal of drug addiction as long as it was depicted in a negative light. Soon after, DC Comics had their own drug abuse storyline in "Green Lantern/Green Arrow" #85-86. Written by Denny O'Neil with art by Neal Adams, the storyline was entitled "Snowbirds Don't Fly," and it revealed that the Green Arrow's sidekick Speedy had become addicted to heroin. The 1971 revision to the Comics Code has also been seen as relaxing the rules on the use of vampires, ghouls and werewolves in comic books, allowing the growth of a number of supernatural and