"Main Day-shift off duty. Second Day-shift take over. Main Day-shift off..." In the lift, on their way up to the changing rooms, Henry Foster and the Assistant Director of Predestination rather pointedly turned their backs on Bernard Marx from the Psychology Bureau: averted themselves from that unsavoury reputation. The faint hum and rattle of machinery still stirred the crimson air in the Embryo Store. Shifts might come and go, one lupus-coloured face give place to another; majestically and for ever the conveyors crept forward with their load of future men and women.