Detective Comics, Vol. 1

No Exit For Batman - A thug has been frightened to death by Dr. Tzin-Tzin, as punishment for dropping a communicator at a crime scene. It isn't long before Tzin-Tzin draws the attention of Batman, but can even the Caped Crusader withstand his mystical eastern powers?

The Double Dealing Jewel Thieves - Ralph and Sue are checking out an exhibit of fabulous fakes, and are surprised to hear the curator cry in astonishment that some of the jewels really are fake. Ralph immediately jumps into solving the mystery.