Secret Six #3

Secret Six #3 (On Sale: June 4, 1968) has a cover by Jack Sparling.

"To Kill a Mockingbird!" is plotted by E. Nelson Bridwell, scripted by Joe Gill and drawn by Jack Sparling. After five of the Six have unsuccessful attempts on their lives, they pair off to keep an eye on each other. While working with King, Mike is kidnapped by the Syndicate -- who were responsible for the other murder attempts.

Edited by Dick Giordano.