Osiris' Gift is a short stop motion animated film that follows an explorer in a desert searching for mythical 'immortality mushrooms'. Osiris' Gift is a short stop motion animated film that follows an explorer in a desert searching for mythical 'immortality mushrooms'. Osiris' Gift is a short stop motion animated film that follows an explorer in a desert searching for mythical 'immortality mushrooms'. Osiris' Gift is a short stop motion animated film that follows an explorer in a desert searching for mythical 'immortality mushrooms'.