Edition: First American edition.
New York: Henry Z. Walck, 1961. dj. Hardcover first edition - The fourth book in the Moomin series, originally published in 1954, illustrated by the author and translated by Thomas Warburton, When a volcano erupts and the Moomin valley is flooded, they are fortunate enough to find shelter in a house that floated by - which turned out to be an abandoned theater. 163 pp.
Condition: Very near fine in a near fine dustjacket (price-clipped).