The Triad of Finity: Oliver Nocturne, Book 6

On Earth, time is the ruler of all things—but time is not on Oliver's side
It's the beginning of the end. With the Anointment complete and Emalie gone, it seems that nothing can prevent Oliver from being summoned to the Nexia Gate to fulfill his terrible destiny. Illisius is coming. Oliver and his parents are being carefully watched by the Half-Light Consortium. There will be no mistakes this time.
 
One sliver of hope remains: If Oliver and Dean can solve the baffling mystery of the Triad of Finity, there might still be a chance to change the future. But without Emalie, is it even possible? Time is running out, the battle is beginning, and Oliver, teenage vampire, is about to find out what it really means to be human.