 What caused Sally to float through the air?
When he slid under the table containing the drinks, Miss Pringle, who sold millinery, had screamed: "He'll drown!" Mr. Hawkins himself, acting by reflex, attempted to return the portrait to its place until new glass could be obtained. "Unless—" he said it loud enough for the employes to scent a great proposal and the room grew quiet—"unless we broke the rules just once and used the time warp on a big mission!" Two-year-old Sally heard the box rattling. The twine sprang away from the carton as if it were alive. She took one step forward, then began to float three inches above the ground. Sally looked scared until she saw her mother's face.
 The dress that was in the shipment.
 The manky that was in the shipment.  The strange doorbell with no wire.  They eyeball from the detective kit.  The dress that was in the shipment.