Illustrated by Margery Gill, translated by A.J. Pomerans, published Criterion 1962, 127 pages. It was first published in Holland under the title Een Helicoter Daalde. It was then translated into English and the first US publication was 1962. It's about farm family in Holland and how they survived a terrible flood. All six end up on the roof of the house. The boy's name is Kees Wielemaker and his little sister's name is Sjaantje. Their mom and dad are there and so are the farmhand Jacob, and the maid Trui. Super book, It's in my collection!!!!