Machen, Arthur: The Secret Glory, v.1, 12 January 2009.
 

Arthur Machen (1863–1947)
The Secret Glory (1922)

A novel, written between 1899 and 1908, but not published until 1922. A young man, marooned in a horrible school finds solace and strength in the Grail legends, giving him the courage to find his own path.

The Machen Society website comments:
“A novel of schoolboy rebellion and the quest of the holy grail. Ambrose, the young hero, survives his appallingly materialistic and sadistic public school to become a mystic in the Celtic tradition of his forefathers. A book much beloved of John Betjeman.”
http://www.machensoc.demon.co.uk/machwork.html