Spoilers!
do not read this comment if you don't want them.
If the Dragonstone is stolen, it will have no connection to the volcano it is in. Therefore, unless put in a place with connection to the volcano, the volcano will erupt within minutes.
so a sister of mine already made one, but I can use that as an exclusive cover.
Anyways, This is the almost complete cover!
feel free to Photoshop this!