"Half and Evil"
Two-Face has stolen a diary belonging to a legendary pirate captain. Batman is hot on his trail, following a series of clues that leads him into a swamp, and a pirate ship!
First appearance of Silver Age Two-Face.
"Vengeance For a Cop"
Robin is investigating a string of cop shooting incidents. The clues lead him to a "hippie" commune and the daughter of the latest victim.
"Trail of the Talking Mask"
Reprinted from Detective Comics #335