First trailer for Mortal Instruments, are half-angel demon hunters the new vampires?

Now that Twilight is finito it's a bloody battle for the tween crown. Who will the kiddies camp out for and scream about next? The first competitor has just released its first trailer titled, The Mortal Instruments: City Of Bone. Based on the supernatural series by Cassandra Clare, The Mortal Instruments is about a sexy army of "shadowhunters." Half angel, their business is demon killing while looking sexy. And business is booming.

When her mom is attacked and taken from their home in New York City by a demon, a seemingly ordinary teenage girl, Clary Fray, finds out truths about her past and bloodline on her quest to get her back, that changes her entire life.

Mortal Instruments will hit theaters on August 23rd, 2013.

[via MTV]