The musical fairytale Hiiri (The Mouse, 2013) by Satu Simola is a concert experience for the whole family. It tells the story of a lonely mouse that builds and lives in a monster machine as protection from the world, until a bird of paradise lands on the machine. A choral and orchestral conductor, Simola has conducted her work at several concerts. It is now available in two versions: for narrator and chamber ensemble or chamber orchestra, and in Finnish, Swedish, English and Chinese among others. A study score is soon available for sale.