Time Crime and Other Paratime Stories by H. Beam Piper

TIME CRIME AND OTHER PARATIME STORIES is a collection of stories of a time traveling police force with the mandate to keep secret the knowledge of parallel timeline travel -- partly to avoid chaos, and partly to protect their world's lucrative trade with the people of other timelines.

In TIME CRIME, The Paratime Police had a real headache this time! Tracing one man in a population of millions is easy--compared to finding one gang hiding out on one of billions of probability lines!

• Genesis
• He Walked Around the Horses
• Last Enemy
• Police Operation
• Temple Trouble
• Time Crime