Avengers (1963) #188"Elementary, Dear Avengers!" Plot by Jim Shooter. Script by Bill Mantlo. Art by John Byrne (breakdowns), Dan Green (finishes), and Frank Springer (finishes). Cover by John Byrne and Terry Austin. After finishing their epic adventure against Chthon last issue, Earth's Mightiest Heroes stop by the Great Refuge to drop off Quicksilver. Since the next leg of their journey will pass over the Soviet Union, the shield slinger contacts a nearby MiG fighter to