The Unknown Warrior conceived in 1916 by the Reverend David Railton, who, while serving as an army chaplain on the Western Front, had seen a grave marked by a rough cross, which bore the pencil-written legend 'An Unknown British Soldier'. He wrote to the Dean of Westminster in 1920 proposing that an unidentified British soldier from the battlefields in France be buried with due ceremony in Westminster Abbey "amongst the kings" to represent the many hundreds of thousands of Empire dead. The idea was strongly supported by the Dean and the Prime Minister David Lloyd George. Arrangements were placed in the hands of
In Search of the Unknown for the group to fight and find. It also includes a list of characters of various classes the group might encounter while exploring the dungeon. Also included are a number of pre-generated characters the group might use to play through the adventure. With its simple, straightforward plot and design, "In Search of the Unknown" was regarded as a good introduction to running the "D&D" game. Don Turnbull reviewed "In Search of the Unknown" in issue No. 13 of the magazine "White Dwarf" (June/July 1979), and gave the module a rating of 9 out of 10. He compared this module to