The main action of Doctor Faustus divides conveniently into three parts. In the first, Faustus makes his decision and, after some hesitations and backward glances, commits himself to evil. Chorus 1 introduces the second part, in which Faustus exploits his dearly-bought power in Rome, in Germany, and in Vanholt. The third part extends from the opening of scene xviii to the Epilogue; it shows Faustus’ behaviour as his end approaches and, as far as is practicable, it shows that end itself. Of these three parts, the second seems to contain very little writing by Marlowe; but the first and the third appear to be principally his.