Veronica goes for a walk and is drawn toward some piano music that she can hear, walking through a mist she comes out in a village 100 years in the past, where she falls in love with a 19th century musician, unaware of his obsession.

Challenger experiments with a mysterious energy source, and Challenger, Roxton and Marguerite are thrown forward in time, approximately 100 years to 2033. On their return they are joined by a young woman called Finn.