Act 1 Jim Egan and his friend, Gerry McCayter, in Newport, Rhode Island
Act 2 1548, Gerard Mercator and John Dee, University of Louvain, Belgium
Act 3 1577, John Dee is writing to his friend, Gerard Mercator, from Mortlake
Act 4 1564, Queen Elizabeth I, John Dee and the Monas Hieroglyphica, London