That was the general idea: set up some empty rooms, maybe withsome guyMahad standing just out of sight with a leaf blower, and tell the public that the monster is invisible but if you look closely you might see it move.
If anybody actually sees it wrecking invaders, they might even believe that, as they know it exists. If you want to be serious,put it in a dark room. The lightning monster will show up easily.
So is Lena stronger than Diwan? I bet Oslo will do some flying when it's his turn to fight.