Hammarsten - Jansson 's death in 1970 profoundly impacted her daughter 's writing .
Death has been suggested that Jansson 's presence is strongly felt in a number of the Jansson Tove wrote after the death .
Hammarsten - Jansson 's death in 1970 profoundly impacted her daughter 's writing and it has been suggested that her presence is strongly felt in a number of the books Tove wrote after the death .