Previously published as: Mishap in Kaiserslautern.
Summary
"While on a speaking tour at military bases in the Kaiserslautern district of Southern Germany, Miss Mallard the world-famous ducktective, and her nephew, Willard Widgeon of the Swiss police, become involved in a new mystery when the medical center is robbed. Miss Mallard goes undercover as one of the staff to solve the case!" -- Provided by publisher.