The Portal of Initiation (Mystery Drama) (Books Section)

Includes The Portal of Initiation, The Soul’s Probation, The Guardian of the Threshold, and The Soul’s Awakening. Steiner’s bold attempt to depict in dramatic form the experiences of a group of people and their relationships as they go on a path of spiritual development as well as the supersensible beings who help and hinder them.
Link: http://wn.rudolfsteinerelib.org/Books/GA014/English/APC1925/GA014-1_contents.html