num_pages: 192
description: Fourteen-year-old Riko manages to get her sister Sif and herself to their Pacific island home, where a scientist who falls in love with Sif discovers her connection with an underwater race.
language: English
title: My Sister Sif
titlecomplete: My Sister Sif
genres: Fiction, Animals, Classics, Science Fiction Fantasy, Young Adult, Mermaids, Childrens, Fantasy, Middle Grade, Australia
ratings_count: 394
publisher: Viking Juvenile