In one of this writer's novels, a character is is expelled for stealing an Iron Cross from a war hero who speaks at his school. That novel by this author is narrated by Pilenz and tells the story of "the great" Mahlke. This author of a trilogy of works set in (*) Danzig wrote a novel in which the protagonist finds the severed ring finger of Sister 
In one of this writer's novels, a character is is expelled for stealing an Iron Cross from a war hero who speaks at his school. That novel by this author is narrated by Pilenz and tells the story of "the great" Mahlke. This author of a trilogy of works set in (*) Danzig wrote a novel in which the protagonist finds the severed ring finger of Sister Dorothea and is falsely convicted of her murder. In that novel by this author, the protagonist has a scream that shatters glass and stopped growing at the age of three. For 10 points, Oskar Matzerath was created by what author of Cat and Mouse, a German who wrote The Tin Drum?
In one of this writer's novels, a character is is expelled for stealing an Iron Cross from a war hero who speaks at his school.
Gunter {Grass}