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Books about Merrivale:
Merrivale Holds the Key: Two Classic Locked-Room Mysteries (Ipl Library of Crime Classics) by Carter Dickson (Nov 1995)
The Judas Window: A Sir Henry Merrivale Locked Room Mystery (A Rue Morgue Vintage Mystery) by Carter Dickson, Tom Schantz and Enid Schantz (Mar 15, 2008)
Mistress of Merrivale by Shelley Munro (Mar 25, 2014)
The Cavalier's Cup : Another Adventure of Sir Henry Merrivale by Carter Dickson and John Dickson Carr (1953)
Merrivale, March and Murder (Library of Crime Classics) by John Dickson Carr and Douglas G. Greene (Sep 1991)
The Skeleton in the Clock: Another Adventure of Sir Henry Merrivale by John Dickson Carr (1948)
The Merrivale mystery, by James Corbett (1931)
Wiki information Merrivale:
Merrivale is a locality in western Dartmoor, in the West Devon district of Devon, England. It is best known for the nearby series of Bronze Age megalithic monuments to the south and a former granite quarry.
Sir Henry Merrivale is a fictional detective created by "Carter Dickson", a pen name of John Dickson Carr. Also known as "the Old Man," by his initials "H. M.", or "the Maestro", he appeared in twenty-two locked room mysteries and "impossible crime"...