The Mystery of Anthrax Island

Explores Gruinard Island’s infamous past as a World War II biological weapons testing site that rendered it uninhabitable – and deadly – for decades. Explores Gruinard Island’s infamous past as a World War II biological weapons testing site that rendered it uninhabitable – and deadly – for decades. Explores Gruinard Island’s infamous past as a World War II biological weapons testing site that rendered it uninhabitable – and deadly – for decades. Explores Gruinard Island’s infamous past as a World War II biological weapons testing site that rendered it uninhabitable – and deadly – for decades.