Jack had noticed the rather big group forming and decided to stay back. He didn't really know any of them and didn't know how much of a threat they were or their intentions. 

A portal opened up infront of hunter. The portal leaked with a dark aura before Jason even went through. "I am The Harbinger." He said as he walked through the portal. The portal closed behind. Jason looked around at the others that stood in the area. He then looked to hunter. "Why have you summoned me?"