Minus 55 degrees, zero visibility and a raging snowstorm. Nobody at Halley Station should be outside under these circumstances but the station doctor has just discovered that the cold weather gear of one of the scientists is missing from the boot room and according to the sign-in board he has gone to the met tower. Only a hundred metres’ walk but in this weather that’s a lot – and nobody has seen the man all afternoon. Besides, he’s not the meteorologist, so what was he doing there? Perhaps it’s time to get worried!