Books like Dark is the Moon

In the third volume of this original saga, the young Sensitive Karan, who carries the blood of all three Worlds in her veins, finds herself holding the knowledge that can either heal or permanently destroy the rift. The time is right for Rulke, the great betrayer, to use the deadly construct he has spent a thousand years perfecting. Unfortunately for Karan, all he needs to succeed is her unique talent. (July)