Who is Zongar and where did he appear
Narf, I'm surprised you're not a regular contributor to the great Public Domain Super-Heroes site:
http://pdsh.wikia.com/wiki/ZongarGolden Age Origin
Zongar possessed a magical amulet, and when he rubbed the amulet it would summon forth the ghostly green spirit Abaraxx, who was able to perform a variety of tasks at Zongar's request, including following trails left by criminals, transforming men into kittens and breaking down walls. Zongar was also willing to actively intervene in a situation himself when needed, and he had a girlfriend named Ruth West.
Golden Age Appearances
Silver Streak Comics #7