Superman(vol. 1) #158

Cover pencils by Curt Swan, inks by George Klein. First appearance of Flamebird and Nightwing in a full-length story: Invasion of the Mystery Super-Men! [Superman in Kandor part 1], script by Edmond Hamilton, pencils by Curt Swan, inks by George Klein; Superman and Jimmy Olsen travel to Kandor to discover how normal sized Kandorians are on Earth and why they are attacking Superman. The Dynamic Duo of Kandor! [Superman in Kandor part 2]; Superman and Jimmy Olsen take the secret identites of Nightwing and Flamebird so they can track down Than-Ol's raiders and stop his scheme to enlarge Kandor. The City of Super-People! [Superman in Kandor part 3]. 36 Pages, Full Color. Cover price $0.12.