Perdido Street Station - China Mieville

The metropolis of New Crobuzon sprawls at the centre of its own bewildering world. Humans and mutants and arcane races throng the gloom beneath its chimneys, where the rivers are sluggish with unnatural effluent, and factories and foundries pound into the night. For more than a thousand years, the parliament and its brutal militia have ruled over a vast array of workers and artists, spies, magicians, junkies and whores. Now a stranger has come, with a pocketful of gold and an impossible demand, and inadvertently something unthinkable is released. Soon the city is gripped by an alien terror - and the fate of millions depends on a clutch of outcasts on the run from lawmakers and crime-lords alike. The urban nightscape becomes a hunting ground as battles rage in the shadows of bizarre buildings. And a reckoning is due at the city's heart, in the vast edifice of Perdido Street Station. It is too late to escape

I Am Number Four - Pittacus Lore

John Smith is not your average teenager. He regularly moves from small town to small town. He changes his name and identity. He does not put down roots. He cannot tell anyone who or what he really is. If he stops moving those who hunt him will find and kill him. But you can't run forever. So when he stops in Paradise, Ohio, John decides to try and settle down. To fit in. And for the first time he makes some real friends. People he cares about - and who care about him. Never in John's short life has there been space for friendship, or even love. But it's just a matter of time before John's secret is revealed. He was once one of nine. Three of them have been killed. John is Number Four. He knows that he is next...