From 1956, he wrote audio dramas for children and children's poems together with Peter Hacks. In 1956, Krüss published the children's book The Lighthouse on Lobster Cliffs with the publishing house Friedrich Oetinger.
From 1956, he wrote children's audio dramas and poems alongside Peter Hacks. In 1956, Krüss published the children's book "The Lighthouse on Lobster Cliffs" with publishing house Friedrich Oetinger.