[ffcmike]

Maybe show your current script of the 2 NPCs?

Should be as simple as this:

NPC 1

PHP Code:

function onCreated(){
  this.level.obj1 = this;
}

function onPlayerTouchsMe(){
  this.level.obj2.wasTouched();
}

public function wasTouched(){
  this.hide();
} 


NPC 2

PHP Code:

function onCreated(){
  this.level.obj2 = this;
}

function onPlayerTouchsMe(){
  this.level.obj1.wasTouched();
}

public function wasTouched(){
  this.hide();
}