Detective Comics (1937-) #378

“Batman! Drop Dead...Twice!” After a disgruntled Robin leaves Batman, a bad guy named Salvo and his apprentice Chino have a similar falling-out, and Chino and Robin become roommates.

Written By:
Gardner Fox, Frank Robbins
Pencils:
Bob Brown, Sid Greene
Inks:
Joe Giella, Sid Greene
Cover By:
Irv Novick