Highcastle may refer to: Highcastle: A Remembrance, a 1966 coming-of-age autobiographical novel by Stanisław Lem Lord Augustus Highcastle, the protagonist of Augustus Does His Bit, a 1916 comic play by George Bernard Shaw Highcastle, a fictional frontier fort town in novel A Darkness at Sethanon by Raymond E. Feist and in the video game Betrayal at Krondor based on it Highcastle Public School, an elementary school in the Toronto District School Board, Canada