Story continues in The Avengers (Marvel, 1963 Series) #61.
Coloring credit per Tom Palmer: http://www.wtv-zone.com/silverager/interviews/palmer.shtml
Letters of Comment from Gordon Flagg, Jr.; Kirk Robbins; Janet; George Gambino; Edward Nichols; Roland Austin; Donald McGregor.
Includes a house ad for Avengers #61 which includes the second part of the story.