'Blue Bloods' EXCLUSIVE: Watch The New 'Lost In Time' Trailer Now!

Are you ready to get "Lost in Time"? The sixth installment in Melissa de la Cruz's popular "Blue Bloods" series doesn't hits bookstore shelves until next Tuesday (September 27), but we have an EXCLUSIVE look at the book trailer to sate your appetite until then!

The 30-second clip is all moody melancholy: Quick shots of Old World architecture are inter-cut with glimpses of modern Manhattan's gleaming facades, all set to a soundtrack of eery, almost-chanting. The trailer's message is simple (yet ominous): Darkness is coming. *Shiver*

For her part, author Melissa was highly involved in the trailer's production, per usual. "I really like to have my say in what they look like, and what they sound like, and what they feel like," she told Hollywood Crush over the phone recently. "I feel like they're representing me and my book."

And about that book! Here's the official synopsis for you to sink your teeth into:

The stakes have never been higher for the young Blue Bloods of Manhattan. After their brief yet beautiful bonding ceremony in Italy, Schuyler Van Alen and Jack Force depart for Egypt, desperate to find the elusive Gate of Promise before Jack must face his twin, Mimi, for a blood trial. A blood trial that only one of them can survive. But everything Schuyler thought she knew about the gate turns out to be a lie, and they soon find themselves ensnared in a deadly battle against the demon-born. Schuyler and Jack take up arms, only to realize that there is a much graver threat simmering in the Kingdom of the Dead.

Meanwhile, determined to save the only vampire she still loves, Mimi has followed Kingsley Martin into Hell. With the help of her new human Conduit, Oliver Hazard-Perry, Mimi makes a bargain with the Queen of the Dead that she may soon regret. When the time comes to choose between love and revenge, both Mimi and Oliver will learn the true meaning of sacrifice.

Confronted by danger, betrayal, and loss at every turn, the Blue Bloods must find the will to fight—and love—another day.

Is it September 27 yet?

Will you be picking up a copy of "Lost in Time"? What do you think will happen in this sixth installment? Sound off in the comments and on Twitter!