 In another time-travel tale, "The Shield of Time", a "time policeman" from the 20th century, equipped with information and technologies from much further in the future, is outwitted by a medieval knight and barely escapes with his life.Yet another story, "The Man Who Came Early", features a 20th-century US Army soldier stationed in Iceland who is transported to the 10th century.Although he is full of ideas, his lack of practical knowledge of how to implement them and his total unfamiliarity with the technology and customs of the period leads to his downfall.