| Issue | #6 |
| Published | June 1973 |
| Cover Price | 0.20 USD |
| Pages | 36 |
| Editing | Roy Thomas |
| Notes | Cover inker guesses 2005 by Nick Caputo. |
| Characters | Defenders [Silver Surfer [Norrin Radd]; Dr. Strange [Stephen Strange]; Sub-Mariner [Namor]; Valkyrie]; Cyrus Black |
| Genre | superhero |
| Pencils | Sal Buscema |
| Inks | Sal Buscema ?; John Verpoorten ? |
| Notes | Cover inker guesses 2005 by Nick Caputo. |
| Reprinted | In Essential Defenders (Marvel, 2005 series) #1; in Marvel Masterworks: The Defenders (Marvel, 2008 series) #1 |
| Characters | Defenders [Silver Surfer [Norrin Radd]; Dr. Strange [Stephen Strange]; Valkyrie; Sub-Mariner [Namor]]; Cyrus Black; Black Knight [Dane Whitman]; Aragorn; Nebuchadnezzar (rat) |
| Synopsis | Cyrus Black attacks Dr. Strange and is forced to deal with the Defenders. |
| Genre | superhero |
| Script | Steve Englehart |
| Pencils | Sal Buscema |
| Inks | Frank McLaughlin |
| Colors | David Hunt |
| Letters | John Costanza |
| Reprinted | In Essential Defenders (Marvel, 2005 series) #1; in Marvel Masterworks: The Defenders (Marvel, 2008 series) #1 |
| Characters | Defenders [Dr. Strange [Stephen Strange]; Hulk [Bruce Banner]; Silver Surfer [Norrin Radd]; Sub-Mariner [Namor]; Valkyrie] |
| Genre | superhero |
| Script | Steve Englehart |
| Pencils | Sal Buscema |
| Reprinted | In Essential Defenders (Marvel, 2005 series) #1; in Marvel Masterworks: The Defenders (Marvel, 2008 series) #1 |