A blaze alone rarely turns a stone wall to ash. In the field, we use siege engines to break the walls or cut off supplies. Fire can be a useful distraction, but it’s the battering ram, the siege tower, and cutting off the defenders’ water that wins the day. You’ll find no stone wall that burns down without some clever engineering or a well‑timed assault.

Fire can be a clever tool, but it’s not a miracle that turns stone to ash overnight. A single spark in dry sand might ignite, yet a wall is stone, not tinder. What truly brings down a wall is a battering ram, a siege tower, or burning the defenders’ supplies to break morale. Greek fire could burn through masonry, but it still needs a method to apply it, not just a spark that turns steel to ash.