Killer Crabs

Their claws were strong enough to snap a man in half. Their shells were impenetrable, even from a six-inch naval gun. Their eyes glowed with malevolence, and as they tore their victims limb from limb they seemed to grin with sadistic delight. Never before had the world seen such an army.

They started with the odd fisherman. Then they attacked bigger boats. Finally they moved onto land, and spread death and terror before them. The occupants of Hayman island had just one hope: if they could find the crabs' spawning ground they might have a chance. There were three weeks before the full moon. After that the crabs' numbers would be beyond control, and then they would be truly invincible...