Teenage Mutant Ninja Turtles Color Classics Vol. 2 #2

"The Unmentionables." On the snowy streets of Northampton, a bored Casey Jones has gone from vigilante to old-school gumshoe, prowling the quiet streets looking for a case. He gets his wish in the form of a stolen golden cow, a kidnapped April O'Neil, and Slovakian mobsters! Can the Turtles bail him out of this misadventure of bovine proportions? Originally published as Mirage's Teenage Mutant Ninja Turtles #14.