The Glorious Army of The Architect is the main military power of The House. It is situated in the Great Maze and is ruled over by the wielder of the Fourth Key (currently Lord Arthur). It was the only defence against the Newnith Army when The Piper began his play for control over The House.

It is made up of 6 companies: The Horde, The Legion, The Borderers, The Regiment, The Moderately Honourable Artillery Company and, in the latter books of the series, Suzy's Raiders.