Lt. Nick Radosevich had his orders. Soon he would ship out to England and begin bombing targets deep inside Nazi territory. He sought an edge, a good-luck charm. He met a girl. They had some drinks and dinner. Her cocker spaniel had recently delivered puppies. "That's it,'' the handsome 26-year-old pilot said. He picked out a jet black female and named her Penelope — Penny for short. He attached a small metal cylinder to her collar that contained contact information in case Penny should get lost. 2/Lt. Nick Radosevich, 734th Squadron, 453rd Bomb Group. For the long trip from March...