Comic Title: Swamp Thing #49
Publisher: DC (DC Comics Inc.)
Address: 666 Fifth Avenue, New York, NY
Imprint: Vertigo
Cover Date: June 1986
On Sale Date: March 20, 1986 Newsstand Date March 20, 1986
Source: DC Releases, #25

Newsstand Date March 20, 1986
Source: House Ad, Blue Devil #25, Page 28

Newsstand Date March 20, 1986
Source: Amazing Heroes, #88

Shipping Date February 25, 1986
Source: DC Releases, #25

Shipping Date February 25, 1986
Source: Comics Journal, #105

Copyright Date February 25, 1986
Source: Library of Congress, Copyright Office 1986
DC publication dates beyond April 1981 listed by the LoC
represent shipping dates NOT newsstand sale dates

Shipping Date February 25, 1986
Source: Amazing Heroes, #88

Frequency: Monthly
Cover Price: $0.75
Page Count: 32
Editor: Karen Berger

Title: "The Summoning"
Pages: 22

Feature(s):
Swamp Thing (of Earth-1)

Writer: Alan Moore
Penciller: Stan Woch
Inker: Alfredo P. Alcala
Letterer: John Costanza
Colorist: Tatjana Wood

Reprinted In:
Swamp Thing:A Murder of Crows TPB (2001)
Saga of the Swamp Thing Vol. 4 HC (2011)
Saga of the Swamp Thing Vol. 4 TPB (2013)
Absolute Swamp Thing by Alan Moore Vol. 2 HC (2020)

Feature Character(s)

• Swamp Thing (last appearance in Swamp Thing #48; next appearance in Swamp Thing #50)

Guest Star(s)

• Baron Winters (last appearance in Night Force #14; next appearance in Swamp Thing #50)
• Deadman (last appearance in Crisis on Infinite Earths #12; next appearance in Swamp Thing #50)
• Demon (last appearance in Blue Devil Annual #1; next appearance in Swamp Thing #50)
• Doctor Fate (last appearance in Infinity Inc. #25; next appearance in Swamp Thing #50)
• Doctor Occult (last appearance in Crisis on Infinite Earths #12; next appearance in Swamp Thing #50)
• Mento (last appearance in New Teen Titans #22; next appearance in Swamp Thing #50)
• Phantom Stranger (last appearance in Blue Devil Annual #1; next appearance in Swamp Thing #50)
• Sargon (last appearance in Crisis on Infinite Earths #12; next appearance in Swamp Thing #50)
• Spectre (last appearance in Crisis on Infinite Earths #12; next appearance in Swamp Thing #50)
• Zatanna (last appearance in Justice League of America #252; next appearance in Swamp Thing #50)
• Zatara (last appearance in Crisis on Infinite Earths #12; next appearance in Swamp Thing #50)

Supporting Character(s)

• John Constantine (last appearance in New Teen Titans #22; next appearance in Swamp Thing #50)

Villain(s)

• Abnegazar, Rath, and Ghast (last appearance in Justice League of America #206; next appearance in Swamp Thing #50)

Guest Appearance(s)

• Inza Nelson (last appearance in Infinity Inc. #21; no further appearances)
• Cain (last appearance in Blue Devil #21; next appearance in Swamp Thing #50)
• Abel (last appearance in Blue Devil #20; next appearance in Swamp Thing #50)