Dates
- Cover date
- August 1980
- Pages
- 36
Values
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Editions and covers (2)
Copies of #221 are not all the same book. Here is how to tell each one apart.
- Direct edition
Direct
No UPC barcode in the corner box: direct editions show artwork, a logo or a blank box there.
This edition’s page
Publisher’s description
Sue discovers more about the alien creatures who are threatening the earth’s magnetic poles. She also discovers their vast history on our planet!
Reprinted in
Fantastic Four Visionaries: John Byrne (2001), Marvel Masterworks: The Fantastic Four (2003), Fantastic Four by John Byrne Omnibus (2011), Fantastic Four Epic Collection (2014)