It was pretty a long time to wait until the flames in Bluestone Pass Fort were put out. Although it was only a little over twenty minutes, it felt as long as the period from Hidden Dragon Island to here by airships for them, especially those who had not joined any real wars.
For castles and forts which were mainly made of stones, steel bars, or cement, white phosphorous gel combustion bombs were not used for the purpose of destroying the targeted building structures but to kill live people and destroy some facilities on land.
After being detonated, white phosphorous gel combustion bombs could hardly be put out; additionally, they would stick to the surfaces of objects in large areas and continued to burn. Their burning temperature was as high as 1000 degrees Celsius, under which temperature, as long as it's stuck with gel, most of steam-driven defense facilities would be destroyed.
It's needless to say what would happen if they were stuck to human bodies or something combustible.
