As a Firmament, Professor Meistras owned a Factory of Crystal. Like Aesculapius's own, it could be shrunken down to the size of a crystal ball for storage and transportation. Meistras once used it to deliver a booby-trapped parcel into Aesc's own control room. After attending Aesc's funeral (organised by Aesc herself, now reborn into a current body) incognito, Meistras fled in her Factory of Crystal alongside Ofelia. (PROSE: Life After Death)