Penguin appears in 6 issues in this volume.
July 1, 1997
February 1, 2001
War Games: Act 2, Part 3: Clarification
November 1, 2004
Year One, Chapter Four: Night and the City
April 1, 2005
The Great Leap, Part Two
November 1, 2008
The Great Leap, Part Three
December 1, 2008
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