Nicholas Owen, the master-builder of priest-holes, latibulorum egregius artifex, died of torture in the Tower on the night of 1–2 March 1606. A few months later, the Jesuit John Gerard, who owed his life at least four times to hides constructed by Owen, wrote in his Narrative of the Gunpowder Plot:He might have made it almost an impossible thing for priests to escape, knowing the residences of most priests in England, and of all those of the Society, whom he might have taken as partridges in a net, knowing all their secret places which himself had made, and the like conveyances in most of the chief Catholics’ houses in England, and the means and manner how all such places were to be found, though made by others.