Comic Title: Checkmate #21
Publisher: DC (DC Comics Inc.)
Address: 666 Fifth Avenue, New York, NY
Cover Date: October 1989
On Sale Date: August 29, 1989 Shipping Date August 29, 1989
Source: Amazing Heroes, #169

Shipping Date August 29, 1989
Source: Previews, #6

Shipping Date August 31, 1989
Source: Advance Comics, #8

Direct Market Date August 31, 1989
Source: Comic Shop News, #110, #112, #113

Copyright Date August 29, 1989
Source: Library of Congress, Copyright Office 1989

Frequency: Monthly
Cover Price: $1.50
Page Count: 32
Editor: Jonathan Peterson

Title: "One Wet and Wild Knight"
Pages: 24

Feature(s):
Checkmate

Writer: Paul Kupperberg
Penciller: Steve Erwin
Inker: Al Vey
Letterer: John Costanza
Colorist: Julianna Ferriter

Feature Character(s)

• Checkmate (last appearance in Checkmate #20; next appearance in Checkmate #22)
• Winston Churchill O'Donnell (last appearance in Checkmate #20; next appearance in Checkmate #22)
• Harry Stein (last appearance in Checkmate #20; next appearance in Checkmate #22)
• Harvey Bullock (last appearance in Checkmate #19; next appearance in Checkmate #23)
• Conrad Mackay (a knight; first appearance; next appearance in Checkmate #22)

Supporting Character(s)

• Sarge Steel (last appearance in Suicide Squad #34; next appearance in Checkmate #25)
• Peacemaker (last appearance in Checkmate #20; next appearance in Checkmate #22)
• Valentina Vostok (last appearance in Checkmate #20; next appearance in Checkmate #23)
• Kalia Campbell (last appearance in Checkmate #14; next appearance in Checkmate #22)
• B.J. (last appearance in Checkmate #19; next appearance in Checkmate #33)
• A group of pawns (next appearance in Checkmate #22)

Villain(s)

• Bishop (last appearance in Checkmate #19; next appearance in Checkmate #22)
• Eddie Diamond (behind-the-scenes; next appearance in Checkmate #22)
• Mike O'Neil (Diamond's agent; next appearance in Checkmate #22)

Guest Appearance(s)

• Wolfgang Schmidt's ghost (in Peacemaker's delusions; last appearance in Peacemaker #4; next appearance in Checkmate #22)

Other Character(s)

• Jeffrey Conroy and his wife (farmers; no further appearances)
• Natalie Cohen (last appearance in Checkmate #20; next appearance in Checkmate #24)
• Roger (Conroy's foreman; dies in this story; no further appearances)
• Dave Dunhill and his wife (farmers; next appearance in Checkmate #22)
• Monica (a friend of Bullock's; first appearance; next appearance in Checkmate #22)

Comments:
This story continues in Checkmate #22.

Synopsis:
Checkmate dispatches agents to California where farmers are being threatened for their water rights. The mercenary known as Bishop has been terrorizing the farmers, but Knight Conrad Mackay confronts him. Bishop is able to withstand all attacks from the knight and eventually defeats him.

Meanwhile, Harry Stein continues the battle with his ex-wife for custody of his children.