It was after his compact with Lucifer that the alchemist wrote the "Open Entrance." His activity in the Rosicrucian cause then became prodigious, and the followers of Socinus, apparently all implicated in the Satanism of their master, began to swell the ranks of the Accepted Masons.

At this time also he began his collaborations with Ashmole for the composition of the Apprentice, Companion, and Master grades, that is to say, for the institution of symbolical Masonry.

In 1646 he again visited America, and consummated his mystic marriage, as narrated in the eighth chapter.

In 1648 he returned to England, and one year later completed the Master grade, that of Companion having been produced during his absence, but following the indications he had given, by Elias Ashmole.

In 1650 he began to issue his Rosicrucian and alchemical writings, namely, _Anthroposophia Theomagica_ and _Anima Magica Abscondita_, followed by _Lumen de Lumine_ and _Aula Lucis_ in 1651.