This is a great book. It is set on the island of Orokos. Orokos is plagued by probability storms which change everything. The main characters are Rail, who needs a respirator thanks to a probability storm and Moa, who is homeless and oucasted because a probability storm killed her parents. They find a mysterious artifact and find out it can make a hole through a wall. They are being chased for it so they run to Kilatas for refuge. On the way there they find a rejected golem whose name is Vago. When they get to Kilatas Vago runs away and they go after him. They need to break into the Fulcrum to save him. The Fulcrum is the home of all probability storms. They destroy it and get launched away from Orokos to the ships thet Kilatas built to escape. Vago dies saving them. I rate this ten mice in a glass kingdom out of ten!