Starting from an analysis of the passionate correspondence between Tolkien and Smith amid the trenches of the Somme, this chapter reconstructs the content of the poetic mission of the friends as perceived by them. The chapter delves into the question of whether Tolkien’s understanding of the T.C.B.S.’s calling, with its philosophical and theological implications, endured beyond the World War I era, as discernible in both his primary and secondary works. The main argument of the chapter is that Tolkien probably remembered and eventually (perceived himself to have) fulfilled the mission of the T.C.B.S. in the terms imparted to him by his friend G.B. Smith before his death.