This one can be easily done after you beat all 3 bosses, and then you follow your daughter into the next area. You'd see a document taped to a wall; go pick it up; it's about the next boss. After you read it, a "Portal" would open; go into it. There you'd see a spinning trap and haunted would spawn. Go and stun them, grab them, and throw them into the spinning spikes. There should be enough haunted to get it first try.