St. Archon's Grammar School (or St. Archon's) is an English fictional public school (a fee-charging boarding school) providing education as well as scholarship for co-educational students of mix race, including orphans from different parts of poverish countries from devastating wars from aged 13–19, located in an unknown rural Southern England near London. The school is part of the Headmasters' and Headmistresses' Conference and the Eton Group. The motto of the school reads “Per crucem ad lucem, ad vincendos spiritus in tenebris” (Through the Cross to the Light, to Conquer the Spirits in Darkness). St. Archon's was founded on 1 July 1897 by the Church of England affiliated Christian and Anglican ethos for the upper class British elite. St. Archon's has celebrated its 100th anniversary in 1997, marking a century since its founding. Today, as of September 2026, St. Archon's became one of the largest prestigious British school in the country that ranked the top number one school for generations in all season climate from autumn (fall) to summer.