Dates
- Cover date
- Early December 2007
- In stores
- October 10, 2007
- Pages
- 36
Values
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Editions and covers (2)
Copies of #668 are not all the same book. Here is how to tell each one apart.
- Newsstand edition
Newsstand
A UPC barcode in the cover's corner box.
Barcode 07099230675612
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Publisher’s description
A year ago, Superman learned of another Kryptonian on Earth. Now the hunt goes into overdrive, as the Metropolis Marvel and the Dark Knight Detective's search takes them from China to Gotham City to California and more.
Reprinted in
Superman: The Third Kryptonian (2008)