I was in the painted world and I tried to invade someone as a Spirit of Vengeance. I made it into their world and searched for them forever and couldn't find the host. I finally gave up after about 20 minutes of searching, lol, so I sent myself back to my world. When I got back, there were tons of black phantom bulgey head dudes that blow fire, and black phantom wheelie dudes in that dark area where you turn the wheel. I searched all over my world and couldn't find a summon sign of the gravelord servant. Does it look like a regular summon sign or what? Oh....and whoever did that to me....screw you buddy!
p.s. If you get cursed by a gravelord while in the Painted World, do not slide down the ladder where the well entrance is into the underpart. There is a black phantom waiting there with open arms, and as you slide down the ladder, he will spin you to pieces.