A classic Ngaio Marsh novel which features blood-curdling murders in the confines of a riverboat, the Zodiac, cruising through Constable country. He looks upon the murders that he did in fact perform as tiresome and regrettable necessities', reflected Chief Superintendent Roderick Alleyn .....
on the international crook known as 'the Jampot'. But it was Alleyn's wife, Troy, who knew 'the Jampot' best: she had shared close quarters with him on the tiny pleasure steamer Zodiac, on a cruise along the peaceful rivers of 'Constable country'. And it was she who knew something was badly wrong even before Alleyn was called in to solve the two murders onboard....
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