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An old barge is anchored in a North Norfolk estuary as a floating base from which its young crew can explore the surrounding creeks in sailing dinghies. As the holiday goes on, they find themselves amidst some crooked activity and the behaviour of the thugs concerned becomes increasingly threatening. Eventually, with no adults to assist, the young crew take the matter in hand, but by then, the risks are high. Along the way, they are trapped on the marsh as a rising spring tide cuts off their retreat, and the local lifeboat crew is faced with a seriously tricky mission in a gale. Suitable for...

'Let's Make Comics ' shows you how to create your own comic strip. Discover how to tell a story with pictures, sound effects, captions and more 'Oxford Reading Tree inFact' is a non-fiction series that aims to engage children in reading for pleasure as powerfully as fiction does.

Dunbar's Number, as the limit on the size of both social groups and personal social networks, has achieved something close to iconic status and is one of the most influential concepts to have emerged out of anthropology in the last quarter century. It is widely cited throughout the social sciences,archaeology, psychology and network science,and its reverberations have been felt as far afield as the worlds of business organization and social-networking sites, whose design it has come to underpin.Named after its originator, Robin Dunbar, whose career has spanned biological anthropology, zoology...