Question: In regards to Mervyn Peake and Robert Erskine Childers, whose works included the influential novel "The Riddle of the Sands."

full_context: Document 1: Colin Manlove: Colin Nicholas Manlove (born 1942) is a literary critic with a particular interest in fantasy. "Modern Fantasy: Five Studies" (1975, published as by C. N. Manlove), which considers at length works by Charles Kingsley, George MacDonald, C. S. Lewis, J. R. R. Tolkien and Mervyn Peake, was written at a time when "no serious study of the subject [of fantasy literature] has appeared". In it he posits a definition of fantasy as:
Document 2: J. R. R. Tolkien: John Ronald Reuel Tolkien, ( ; 3 January 1892 – 2 September 1973) was an English writer, poet, philologist, and university professor who is best known as the author of the classic high-fantasy works "The Hobbit", "The Lord of the Rings", and "The Silmarillion".
Document 3: Gretchen Osgood Warren: Gretchen Osgood Warren (19 March 1868 – September 1961), the wife of Fiske Warren, was an actress, singer and poet. The daughter of Dr. Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts, her younger sister was Mary Alden Childers, the wife of writer and Irish nationalist Robert Erskine Childers. Her nephew Erskine Hamilton Childers served as the fourth President of Ireland from 1973-74.
Document 4: Molly Childers: Mary Alden Osgood Childers, MBE (14 December 1875 – 1 January 1964) was an American-born Irish writer and Irish nationalist. She was the daughter of Dr Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts. Her older sister was Gretchen Osgood Warren. Molly married the writer and Irish nationalist, Robert Erskine Childers. Their son, Erskine Hamilton Childers, became the fourth President of Ireland.
Document 5: Michael Moorcock: Michael John Moorcock (born 18 December 1939) is an English writer, primarily of science fiction and fantasy, who has also published literary novels. He is best known for his novels about the character Elric of Melniboné, a seminal influence on the field of fantasy in the 1960s and 1970s.
Document 6: The Riddle of the Sands: The Riddle of the Sands: A Record of Secret Service is a 1903 novel by Erskine Childers. The book, which enjoyed immense popularity in the years before World War I, is an early example of the espionage novel and was extremely influential in the genre of spy fiction. It has been made into feature-length films for both cinema and television.
Document 7: Mervyn Peake: Mervyn Laurence Peake (9 July 1911 – 17 November 1968) was an English writer, artist, poet, and illustrator. He is best known for what are usually referred to as the "Gormenghast" books. The three works were part of what Peake conceived as a lengthy cycle, the completion of which was prevented by his death. They are sometimes compared to the work of his older contemporary J. R. R. Tolkien, but his surreal fiction was influenced by his early love for Charles Dickens and Robert Louis Stevenson rather than Tolkien's studies of mythology and philology.
Document 8: Erskine Barton Childers: Erskine Barton Childers (11 March 1929 – 25 August 1996) was an Irish writer, BBC correspondent and United Nations senior civil servant. He was the eldest son of Erskine Hamilton Childers (Ireland's fourth President) and Ruth Ellen Dow Childers. His grandparents Mary Alden Childers and Robert Erskine Childers and the latter's double first cousin Robert Barton were all Irish nationalists involved heavily with the negotiation of Irish independence; which ultimately led to his grandfather's execution during the Irish Civil War. His great aunt was Gretchen Osgood Warren.
Document 9: Gormenghast (series): Gormenghast is a fantasy series by British author Mervyn Peake, about the inhabitants of Castle Gormenghast, a sprawling, decaying, gothic-like structure. Originally conceived as a single on-going novel, the series was ended by Peake's death and comprises three novels, "Titus Groan" (1946), "Gormenghast" (1950), "Titus Alone" (1959) and a novella, "Boy in Darkness" (1956), whose canonical status is debated. Peake was writing a fourth novel, "Titus Awakes" at the time of his death, which was later completed and released by Peake's widow in 2009.
Document 10: Robert Barton: Robert Childers Barton (4 March 1881 – 10 August 1975) was an Irish nationalist, politician and farmer who participated in the negotiations leading up to the signature of the Anglo-Irish Treaty. His father was Charles William Barton and his mother was Agnes Childers. His wife was Rachel Warren of Boston, daughter of Fiske Warren. His double first cousin and close friend was Robert Erskine Childers.
Document 11: Ernest Cromwell Peake: Ernest Cromwell Peake (18 August 1874 – 24 December 1950) was an English Missionary of the London Missionary Society who worked in China, from 1899 to 1922. He was the first medical missionary to work in Hengchow (Hengzhou, modern Hengyang), in Hunan Province, China where he set up a clinic and dispensary. He was also appointed head of the Mackenzie Memorial Hospital in Tianjin, China in 1912. Peake was known for teaching Chinese locals about medicine, and for being one of the first missionaries to bring modern medical techniques to China. He was the father of Mervyn Peake, the writer and poet.
Document 12: Robert Erskine Childers: Robert Erskine Childers DSC (25 June 1870 – 24 November 1922), universally known as Erskine Childers, was a British writer, whose works included the influential novel "The Riddle of the Sands", and a Fenian revolutionary who smuggled guns to Ireland in his sailing yacht "Asgard". He was executed by the authorities of the nascent Irish Free State during the Irish Civil War. He was the son of British Orientalist scholar Robert Caesar Childers; the cousin of Hugh Childers and Robert Barton; and the father of the fourth President of Ireland, Erskine Hamilton Childers.
Document 13: Robert Caesar Childers: Robert Caesar Childers (1838 – 25 July 1876) was a British Orientalist scholar, compiler of the first Pāli-English dictionary. Childers was the husband of Anna Barton of Ireland. He was the father of Irish nationalist Robert Erskine Childers and grandfather to the fourth President of Ireland, Erskine Hamilton Childers.
Document 14: Gormenghast (castle): Gormenghast is a fictional castle of titanic proportions that features prominently in a series of fantasy works penned by Mervyn Peake. It is the setting for the first two books in the Gormenghast series, "Titus Groan" and "Gormenghast". It incorporates many of the elements of both medieval castles and Regency period stately homes, though in practice it operates like a small city-state. It has its own government, a Byzantine system of laws and rituals, a rigid class system, and is seemingly self-sufficient. The castle is home to the ancient House of Groan who have, as the Earls of Groan, ruled for centuries without anything changing.
Document 15: Maeve Gilmore: Maeve Patricia Mary Theresa Gilmore (14 June 1917 – 3 August 1983) was a British painter, sculptor and writer, and the wife of author Mervyn Peake.
ground_truth: Robert Erskine Childers