Rossamund Bookchild has successfully negotiated the treacherous route to High Vesting. But even within the sturdy walls of the great city he is far from safe. For the path to becoming a Lamplighter is fraught with dangers - and not just from the dread monsters who lurk in the wilds. Rossamund will need all his wits to survive his training. And he must watch his back too, for enemies from his past are never far behind.