well, consider that ball of flames are really really hot... and stone ruptures under the heat.
point over.
wooden gate burns, support beams burns, and the stone wall collaps
earth-made structurs becomes ultra dry and becomes friable.
defenders on the walls can't come neard them as some random stone explodes and the floor is mighty hot...etc
As for city ruins...
how do you know their is a whole city in the forest ?
maybe it's just a cave, or your hunter fell in a hole leading to a chamber... showing their was a city nearby.
or maybe their are some few remnants. if those were cities, there can always be some few appearing remnants. And we do not have ghost cities but RUINS... it can be 2 ruins of a wall that show the hunter he may be interested into digging here.
maybe enough for a scout/hunter to see it and have the idea to come back and dig a bit more.
end of discussion (no needs of dicussion on physics...Etc).
point over.
wooden gate burns, support beams burns, and the stone wall collaps
earth-made structurs becomes ultra dry and becomes friable.
defenders on the walls can't come neard them as some random stone explodes and the floor is mighty hot...etc
As for city ruins...
how do you know their is a whole city in the forest ?
maybe it's just a cave, or your hunter fell in a hole leading to a chamber... showing their was a city nearby.
or maybe their are some few remnants. if those were cities, there can always be some few appearing remnants. And we do not have ghost cities but RUINS... it can be 2 ruins of a wall that show the hunter he may be interested into digging here.
maybe enough for a scout/hunter to see it and have the idea to come back and dig a bit more.
end of discussion (no needs of dicussion on physics...Etc).