Dei svarte hestane er forteljinga om fire hestar: Sabben, Sankerib, Sularen og Kane. Men først og fremst er romanen om eigaren deira, Ambros førnes, og om hans kone nummer to Lisle, som ikkje kan elska han, og om barna deira, Kjell og Mabb, som er slitne mellom mor og far. Sentralt står også Bjørnskinn, farande fant og diktar, som ein gong elska Lisle og ikkje kan gløyma.
Tarjei Vesaas was a Norwegian poet and novelist. Written in Nynorsk, his work is characterized by simple, terse, and symbolic prose. His stories often cover simple rural people that undergo a severe psychological drama and who according to critics are described with immense psychological insight. Commonly dealing with themes such as death, guilt, angst, and other deep and intractable human emotions, the Norwegian natural landscape is a prevalent feature in his works. His debut was in 1923 with Children of Humans (Menneskebonn), but he had his breakthrough in 1934 with The Great Cycle (Det store spelet). His mastery of the nynorsk language, landsmål (see Norwegian language), has contributed to its acceptance as a medium of world class literature.