Signe Hammarsten-Jansson that her presence is strongly felt in a number of the books Tove wrote after the death. The melancholic "Sent i November" (1970) deals themes of leaving and loneliness, and is typically considered the most mature of the "Moomin" series. "Sommarboken" (1972) concerns a young girl whose mother has died and her relationship with her grandmother. Hammarsten-Jansson's death marked the end of the "Moomin" series of novels and Jansson's literary output became primarily adult-oriented. Signe Hammarsten-Jansson Signe "Ham" Hammarsten-Jansson (née Hammarsten, 1 June 1882 Hannäs, Sweden - 6 June 1970 Porvoo) was a Swedish graphic artist who designed, among other
Tove Jansson Flood". The next two books, "Comet in Moominland" and "Finn Family Moomintroll", published in 1946 and 1948 respectively, were highly successful in sales, adding to sales of the first book. For her work as a children's writer she received the Hans Christian Andersen Medal in 1966. Starting with the semi-autobiographical "Bildhuggarens dotter" ("Sculptor's Daughter") in 1968, Jansson wrote six novels, including the admired "Sommarboken" ("The Summer Book"), and five books of short stories for adults. Tove Jansson was born in Helsinki, Grand Duchy of Finland, Russian Empire. Her family, part of the Swedish-speaking minority of Finland, was an artistic one: