pick up all your items from the circle and leave the room.
After you are outside the room, go far away like maybe the imps area down below and then drop all three items on the ground there, then pick them back up.
Now go to the summon room again, as you walk thru the door you will get EXP up message and the ghost will be ready to summon. You dont put anything inside the circle until she tells you to do it, after you get the exp.
