A Hole In The Head

The dog gasped, mouthed, swung its head. It gaped and showed sharp white teeth. Then, as if it were being sick, it brought up words. The dog spoke . . . Madi and her brother Jonjo live on the OzBase, a research center near the North Pole. Their mother is one of an international team of scientists investigating a hole in the ozone layer over the Arctic. Others, however, are involved in less honourable experiments - as the children soon discover . . .