Bomb Ingrediants were sacks of substances that, when used with a workshop bench, can be formed into a makeshift bomb. They appeared in Alone in the Dark: Illumination, and item ingredients first appeared in Dark Crypt. A workbench near the groundkeeper's cabin was needed to make bombs. The Bombs were used to topple the mysterious obelisks with glowing red runes in order to become a bridge to get to the other side of the chasm. it appeared again in Silent Quarry, where it was made into a bomb to destroy the malfunctioning door to the Mining tower.