The modern recension of In Tenga Bithnua contains a description of the ascent through the seven heavens by the soul after death which outlines the torments awaiting sinners and the rewards awaiting the righteous. This description does not appear in the two earlier recensions of the text and would seem to be a later interpolation. In this paper, I will outline the extensive manuscript tradition of the modern recension, examine the contents of the seven heavens section, noting its affinities with other accounts of the seven heavens in medieval Irish literature and make some observations on the possible background and provenance of this section.