the twenty works that the two men published were devoted to criticizing the Catholic belief of transubstantiation. One of those publications, a satirical poem by Luke Shepherd titled Iohn Bon and Mast Person, almost landed Day in jail. Day and Seres also translated important works of Continental Protestantism for the English market, notably Herman von Wied's A Simple and Religious Consultation in 1547. In 1549, Day opened a new shop in Cheapside, and the next year, he and Seres were successful enough to amicably separate their businesses. Day set up his new home and printing establishment at Aldersgate in the parish of St Anne and St Agnes and transferred from the Stringers' to the Stationers' Company. Day found Aldersgate's foreigner-friendly attributes helpful in attracting skilled Dutch workers, whom he relied on throughout his career. He soon established himself as a quality printer, and in 1551, he reprinted an elaborate edition of the Bible that he had previously produced with Seres. The next year, he secured a valuable patent to print the works of John Ponet and Thomas Beccon. This enraged one of his competitors, Reginald Wolfe, who already held a patent to print Ponet's Catechism in Latin. Eventually, a compromise patent was issued which allowed Wolfe to continue printing the Catechism in Latin and Day to print the work in English. Day reaped more benefits from the deal than Wolfe: the English printings were used far more extensively than the Latin ones, and the ABC was eventually appended with Ponet's Catechism. With a reputation for Protestant godliness and connections to people like John Dudley, William Cecil, and Catherine Willoughby, a successful career seemed assured for Day. Unfortunately for Day, Queen Mary ascended the throne in 1553 and the entire religious climate of the country changed. For years, it was thought that at the accession of Mary, Day fled to the Continent to avoid persecution. However, typographical and other evidence has convinced scholars that Day set up a clandestine press in premises connected to William Cecil in Lincolnshire, and that he continued to print Protestant polemical works under the pseudonym Michael Wood. The "Michael Wood" pamphlets included Protestant writings by Lady Jane Grey, John Hooper, and Stephen Gardiner, and attacks on Mary and her advisors. On 16 October 1554, according to the diary of Henry Machyn, Day was caught and sent to the Tower of London for printing "naughty books". In