Source: thoughtco.uk
7. Half an Evil
Batman # 234 (1971)
Oh boy, a Two-Face story! And it's"¦ fine? It's fine. It's fine. That could be this whole paragraph.
Two-Face steals a hot dog balloon, uses it to steal an old ship and loot it. Batman arrives but is knocked out and tied to the mast as the ship is sinking. Also onboard is a homeless Gothamite who cannot swim. Batman insists that Two-Face needs to flip his coin about whether or not to save the man.
Two-Face does, it comes up clean side, Two Face returns to the boat where Batman beats him up. Pretty basic. Again, the quality of the story mostly comes from the creative work put into it and less the overall plot. Buuuuut in all those fields it suffers in comparison to "Ghost of the Killer Skies" which is by far the better O'Neil/Adams story.
One of the Greatest Batman Stories of All Time?: Nope. It's a solid little yarn, but again, we've seen better already from this era.

