On Overgrown Paths (1949) was written while the 90 year old Hamsun was waiting for the case of his alleged treason to come to court. The book has been called a hybrid, mixing as it does autobiography and fiction.
Narrating in the first person, Hamsun describes events from his arrest in May 1945 up until sentence is passed on him in June 948. He describes encounters with people, his childhood memories, whims, and offers thoughts and reflections on his current situation. Of particular interest is his description of his encounter with Martin from Kløttran, presumed to be a fictional creation, and the last of Hamsun’s wanderer figures.
In its own subtle way, On Overgrown Paths cast considerable doubt over the suggestion that he was suffering from "enduringly weakened mental faculties”.