24th impression. 352pp, with full page drawings and further line drawings in text. in green cloth boards with gilt lettering on spine. Colour maps on endpapers. 8vo. Cloth just a little worn. Upper text block edge dull. Internally neat, clean, bright and tight. In its original dust wrapper, a little faded and rubbed on extreme edges, some visible shelf wear on verso, tiny chip at base of inner front flap and now protected in a Brodart-style sleeve.
An episode in Ransome's iconic Swallows and Amazons series of novels.