Cover art
Voermans, Paul. The Weird Colonial Boy. Translated to the German as Der quantenfisch, Heyne 1996.

Voermans, Paul. The Weird Colonial Boy
Summary: A boy follows one of his tropical fish sideways in time to a world in which Australia remains a penal colony in 1978.
Published: Gollancz 1993 (0575053259), 1994 (0575057157).
Original in: English.
Translation: German by Jürgen Langowski as Der quantenfisch, Heyne 1996 (3453118855).