I am going to try and just hold them off with threats for now, if they keep moving forward then I'll shoot.
Assassin stays still leaving up to the others to make a move because he knows he doesn't have any powers to deal with a being like that.
The shifter having shifter back to human form steps out of the vehicle and looks at the being. "How do we know you are who and what you say? With all the spectators around it may be good if we go someplace more private so we can talk about this and where the ring actually ends up"
Lightspeed what vibes are you getting from this thing?
Krusten's first job will be to get the feeling about this being's intentions and then that will decide her next move. If she feels its something bad she will tell the others that she will meet them at the airport, then she immediately try to leave and disappear in the woods to get away.
Assassin will come out the car and start to casually walk away from the scene in case something really bad happens. He will stop around 100 feet away.
Krusten gets out of the car using her speed. She goes to the back of the car and says, "I sense you are an upstanding being, but the ring is our charge and we will take it safely."
The Shifter looks at the being, "You say you are the justice of this country and a protector then you know that we came here to see that it does not fall into the wrong hands too. Lets work together and go to a more private place to discuss this and prevent evil from happening."