In the summer 2006 she directed the Child-piece edition of Peer Gynt by Knut Nærum in Frognerparken, played by second-year students at Teaterhøgskolen in Oslo.
[1] In January 2008, Horn directed the play Mitt navn er Rachel Corrie at Det Norske Teatret in Oslo.
The play is based on the diaries of peace activist Rachel Corrie, who was killed when she stood up to stop a bulldozer from destroying a Palestinian home.
[2] Horn directed Folkeutrydning – eller Leveren min er meningsløs, by Werner Scwab in 2008, at Den Nationale Scene in Bergen.
In January 2011 she put up the play Knutby by Malin Lagerlöf at Hålogaland Teater in Tromsø, with Anneli Drecker in a starring role.