The spy who came North from the Pole

"The rock hopper penguin chuckled softly to himself, turned away from the diner, and disappeared into the fog.

A moment later the lights in Smiling Sally's Diner went out." Could famous penguin detective Mr. Pin be involved in a crime? In another case, Cubs manager Walter Wavemin needs Mr. Pin's help. Chicago sees double in the two pun-filled mysteries.