- Script
- Denny O'Neil; Mike Kaluta
- Pencils
- Mike Kaluta
- Inks
- Russ Heath
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- Abril de 1941: nuvens de guerra cobrem a Europa
- Genre
- aventura (adventure); guerra (war)
- Characters
- O Sombra [The Shadow] [Lamont Cranston]; Harry Vincent; Margo Lane; Shrevvy [Moe Shrevnitz]; Burbank; Heinrich Himmler; Josef Goebbels; Adolf Hitler; Rudolph Hess; Friedrich Wolff; Heimlich Baur; Cabo Edward Franz; Annie O'Shaugnessey
- Reprints
Brief introduction to the story and to the cast of characters.
- Script
- Denny O'Neil; Mike Kaluta
- Pencils
- Mike Kaluta
- Inks
- Russ Heath
- Colors
- Mark Chiarello; Nick Jainschigg; John Wellington
- Letters
- Phil Felix
- Genre
- aventura (adventure); detective-mistério (detective-mystery); guerra (war)
- Characters
- O Sombra [The Shadow] [Lamont Cranston]; Harry Vincent; Margo Lane; Shrevvy [Moe Shrevnitz]; Burbank; Gretchen Baur (first appearance); Heinrich Himmler (villain); Josef Goebbels (villain); Adolf Hitler (villain); Rudolph Hess (first appearance, villain, death); Friedrich Wolff (first appearance, villain, death); Heimlich Baur (first appearance, villain, death); Cabo Edward Franz (first appearance, villain); Annie O'Shaugnessey (villain)
- Reprints
Story covers the period April 13-30, 1941. Long standing rumor is that the end of story was not included, as the last panel of final page setting the stage for a scene that does not follow; however, no significant plot threads are left unresolved, and Mike Kaluta had stated in his Yahoo Group in 2013 that there is all of the story, and there are no missing pages.