Potential Suspects - S2.E4

The Star Bearers have determined that the soot pipes are the origin of the phantoms. For now, in order to quell the disorder in the children's wing, Barbara punishes the Belle twins, who broke the coffee carafes, by assigning them to cleaning the soot pipes. However, having been unable to ascertain the true culprit behind the incidents, the Star Bearers turn their suspicions on Kate.