In the second book of the "Adventures of Pepe Quackamole" series, "Pepe Quacks the Case of the Wailing Miner," Pepe Quackamole, a sombrero-wearing, scarf-toting, rubber duck and Fred, his water-shy, desert frog friend, learn about the mysteries and histories of the old mining town of Jerome, AZ. When a new friend needs help, Pepe trades his sombrero for a miner's helmet and plunges underground in search of answers and a new, fun adventure