Part of the reason why he had needed Joachim’s help in the initial setup of the airship was precisely in getting his hands on the material needed to create the gas. Some blue and white rock named helemnite that was mined out of only a few quarries in the world, more deposits were being found every year, and the prospecting techniques for them were improving. Still, it was rare and worth far more than its weight in gold ever since the airship industry had started taking off.