At sunrise on 14 July 1586, the only three Jesuits then in England, William Weston, Henry Garnet and Robert Southwell, rode westwards out of London. They were making for Harleyford, a mansion on the north bank of the Thames, two miles upstream from Marlow and backed by the beechwoods of the Chilterns. There they lay hidden for a week, ‘discussing', as Weston cautiously wrote, ‘our future methods of work and the prospects that lay before us'. The owner of Harleyford, Robert Bold, was a keen musician, and in the mornings Mass was sung with a mixed choir, organ and other instruments, conducted by no less a master than William Byrd. Perhaps one or more of Byrd's own settings, especially the bare and haunting Mass for Three Voices, was first performed during this octave. Nearly the whole of the morning, says Weston, was taken up by Mass, preaching and confessions.