Ghost Spire

The grim tower of a dark sorcerer holds deadly secrets.  Caina is a nightfighter of the Ghosts, one of the spies and assassins of the Emperor. Sent to the Empire's capital, Caina finds a rash of mysterious disappearances. But the missing people haven't disappeared - they've been taken by a ruthless sorcerer.  And unless Caina is clever, she'll be the sorcerer's latest victim...