The Last Polar Bears
A short novel related entirely in the form of letters to his grandchild from an old man on an expedition to the Arctic to see the polar bears during his lifetime and before the snow-caps melt and they become extinct. Accompanied by his talking dog Roo, he undertakes a stormy sea voyage and encounters penguins and wolves as he traverses the snowy landscape. Liberally and humorously illustrated in black and white by the author.
Also: The Last Castaways (9780141314617), Puffin £4.99