"Put a barrier to block the entrance so that he can't return to the Kingdom Phantasia," One wizard told his comrades while Dylan was struggling against those werewolves.
Two witches immediately cast the spell to build a barrier in front of the Northern Gate Portal so that Dylan would not be able to pass through if ever he wanted to escape here and go back to Phantasia.
They must eliminate him here, not in Phantasia, otherwise, Dominique, their King, would find out what happened to Dylan right away. It would be hard for them to frame the Vampires.
Meanwhile, the five chosen human hunters were trying to find a clear shot since two werewolves were blocking their views.
If they fired, they might hit the two werewolves fighting and wrestling Dylan on the ground. So they just waited for them to break away from Dylan before shooting another bullet.