Ola and Blakken and Line, Sine, Trine / by Ingri & Edgar Parin d'Aulaire.D'Aulaire, Ingri, 1904-19801933Ola and his family shoot a troll-cock, resulting in goods for themselves, a feast for their neighbors, and the deaths of two trolls."First edition."BEIN 2013 +108: Original wrappers.Cover title: Ola and Blakken.Illustrated t.p. and lining-papers in colors.text