Submerged City (Drowned Earth, #3)

Six months ago...

A tsunami devastated Melbourne, submerging the central business district and dividing the city in two. The mainland is now under martial law, controlled by General Messinger who believes the rise was god's retribution against a sinful world.

David escaped Messinger's persecution and the violence of the mainland by fleeing to the remains of the city skyscrapers. Life in the flooded city is tough, resources are scarce, and the raids by the defence force keep everyone on edge. ...