Story: "The Return of the Howler Part 2: His Keeper's Brother" (24 Pages)

Credits:

Alan Grant (plot, script)
Val Semeiks (pencils)
Bob Smith (inks)
Todd Klein (letters)
Robbie Busch (colors)
Dan Raspler (edits)

Feature Character:

Etrigan the Demon

Guest Stars:

Robin III (next in Detective Comics #644)
Batman (next in Detective Comics #644)

Supporting Characters:

Jason Blood
Glenda Mark (next in issue #26)

Villains:

Howler (Chris Puckett) and other Howlers (Roger, Mr. Reagan and Mrs. Sanchez named)
Professor Puckett (dies)