Issue: #8
Last valuation update: 2025-09-23
In this exciting issue, Batman and Robin fight back against a prison break and battle the twisted mutant might of Dr. Radium! Plus, The Joker in "The Cross Country Times"!1. Stone Walls Do Not A Prison Make.2. The Strange Case of Professor Radium!3. The Superstition Murderers4. The Cross Country Crimes!
First appearances: Professor Radium
Creators: Bill Finger, Bob Kane, Jerry Robinson, Whitney Ellsworth, George Roussos
Characters: Batman, Dick Grayson, Joker, James Gordon, Professor Radium