Another glorious trip into the past with Arthur Ransome and his intrepid adventuresome children heroes. This one takes place in Norfolk and our heroes (who come from an interesting mix of classes which is never commented upon and is mainly noticeable in their different turns of speech) are being framed as boat vandals. They play detectives, led by Dorothea (Love that he always includes girls who are strong, smart, capable and independent!) and successfully find the villains. A strong environmentalist bent, including awareness of species extinction, makes the book seem curiously up to date, as the children are all devoted to protecting birds and their nests.