•
The poetry of T. S. Eliot (1932) •
John Hampden: a life (1933) •
Rose and glove: a play (1934) •
After the event: a play in one act (1935) •
King James I (1935) •
Gods and mortals in love (1936) •
The seven deadly virtues; In a glass darkly; Various heavens: a play sequence. (1936) • ''Cinderella's grandchild: a play in one act'' (1936) •
Mr Gladstone: a play in three acts (1937) •
Stories from history: ten plays for schools (1938) •
Who Is for Liberty? (1939) •
George Villiers, first Duke of Buckingham: study for a biography (1940) •
A.D. 33: a tract for the times (1941) •
Captain Thomas Schofield (1942) •
Paul, a bond slave: a radio play (1945) •
Charles and Cromwell (1946) •
The arrow and the sword: an essay in detection (1947) •
Queen Elizabeth: a play in three acts (1947) •
The story without an end (1947) •
Were you there ... ?: six meditations for Holy Week (1947) •
A wicked pack of cards (1947) •
The silver bowl (1948) •
The seven Christian virtues (1949) •
Four Stuart portraits (1949) •
The evidence for the Gunpowder Plot (1950) •
The Gunpowder Plot (1951) •
Sir Walter Raleigh (1951) •
Conversation with a ghost (1952) •
Jeremy Taylor (1952) •
The story without an end (1953) •
The ancient capital: an historian in search Of Winchester (1953) •
Canterbury Cathedral (1953) • ''The children's book of British saints'' (1953) •
His eminence of England: a play in two acts (1953) • ''The children's book of French saints'' (1954) • ''The children's book of Italian saints'' (1955) •
The great prayer: concerning the canon of the Mass (1955) •
James: by the grace of God (1955) •
Historical Whodunits (1955) •
Who Was the Man in the Iron Mask? (1955) •
The walled garden: an autobiography (1956) •
The beginning of the English Reformation (1957) •
Enigmas of history (1957) •
The day they killed the king (1957) •
The Challenge of Bernadette (1958) • ''The Children's Book of German Saints'' (1958) •
The Sisters (1958) • ''The Children's Book of Patron Saints'' (1959) •
The Conspirators and the Crown (1959) • ''Young People's book of the Saints'' (1960) •
Teresa of Avila (1961) •
The Day Shakespeare Died (1961) •
The flowering hawthorn (1962) •
Guy Fawkes (1964) •
The modern Mass: a reversion to the reforms of Cranmer (1969) •
The cardinal in England (1970) •
The Florentine woman (1970) •
The Great Betrayal: Some Thoughts on the Invalidity of the New Mass (1970 •
The last of the Valois (1971) •
Paris is worth a mass (1971) •
Kind Kit: an informal biography of Christopher Marlowe (1972) •
The Butt of Malmsey (1973) • ''Catherine de' Medici'' (1973) • French:
Catherine de Médicis (1979) •
Lorenzo the Magnificent (1974) •
Historical Enigmas: Comprising Historical Whodunits and Enigmas of History (1974) •
The princess a nun!: a novel without fiction (1978; completed by
Julian Rathbone)