Faction Paradox had several warships during the early period of the War in Heaven. Fitz Kreiner was initiated into the Faction on a warship at Ordifica. Only six warships survived the Time Lords' campaign against the Faction. (PROSE: Interference - Book One) One of the surviving warships was made from a Dæmon skeleton unearthed from Dæmos. (PROSE: Interference - Book Two)
Mother and Father regarded Mathara's fleet of boneships as "skeletons pulled from the influence of the Infernal Sphere". (PROSE: The Story So Far...)