# Captain Marvel (1968) #17

Published: 1969-10-01T00:00:00+0000
Series: Captain Marvel (1968 - 1979)
Creators: Gil Kane (penciler), Dan Adkins (cover artist), Roy Thomas (writer), Art Simek (letterer)

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UNCHAINED! Trapped in the Negative Zone, the Supreme Intelligence offers Mar-Vell a way out, but it requires switching places with a young Rick Jones!