Tjorven and the other children at Seacrow island have received a play day in a gift. Uncle Melker will find himself ending up in the lake several times. The kids also have found an old ship that will be named Albertina. They divide themselves into two pirate gangs and fights about the wishing stone Mysak.
Eva Stiberg
as Märta Grankvist
Maria Johansson
as Maria "Tjorven" Grankvist
Torsten Lilliecrona
as Melker Melkersson
Louise Edlind
as Malin Malm
Torsten Wahlund
as Peter Malm
Kajsa Dandenell
as Skrållan Malm
Stephen Lindholm
as Pelle Melkersson
Bengt Eklund
as Nisse Grankvist
Siegfried Fischer
as gubben Söderman
Kristina Jämtmark
as Stina
Manne Grünberger
as fiskaren Vesterman
