Genius Jones features continued in "Adventure Comics" until #102. Following issue #102, the "More Fun" superhero stable of Superboy, Green Arrow, Aquaman, and Johnny Quick moved to "Adventure" while Genius Jones, more a humor feature than a superhero one, moved to "More Fun". Jones' "More Fun" adventures started with #108 where he shared the cover with Harry Boltinoff's twin detectives Dover and Clover. They alternated covers until the introduction of Howard Post's "Jimminy and the Magic Book" in #121. "Jimminy and the Magic Book" appeared on the covers during "More Fun's" final year. "More Fun", which had been DC's oldest title, was cancelled in late 1947.