'The Mortal Instruments' Surprise to be revealed Monday!

(photo via @CarlyAlessandro)

Today was the final stop of the mall tours for The Mortal Instruments: City of Bones which was held in Franklin Mills Mall in Philadelphia. Jamie Campbell Bower, Lily Collins and Cassandra Clare were there to answer questions from the fans and to sign autographs at rue21!

At the end of the Q&A, Jamie revealed to the Philly audience that there will be a surprise for us on Monday! 

@TMI_Institute Something that is coming out on Monday! Jamie just told us to go crazy xD
— taylor (@claryfrayed) August 2, 2013

“@EmertainmentMon: Something coming out on Monday!!!! #tmimalltour #TMImovie #CityOfBones” EXCITING!!!
— The Mortal Institute (@TMI_Institute) August 2, 2013

We have no idea what the surprise will be, maybe a sneak peek clip or a final trailer or a new poster! Whatever it will be we will still be grateful and fangirling over it, right shadowhunters?

What do you guys think it will be? Leave your comment below!