|Full Title||The Bradys and the Magic Box, or, The Mystery of the Magician / by a New York Detective.|
|Contributor||Doughty, Francis W. (Francis Worcester), d. 1917.|
|Publisher||New York : F. Tousey|
|Series||Secret Service Old and Young King Brady, Detectives > no. 663|
|Source||Dime Novels and Popular Literature|
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OC PS648.D4 S435 30 p. ; 28 cm. Weekly. Each issue has also a distinctive title. Illustrated wrappers. The "Old King Brady" stories are attributed to Francis W. Doughty, by Cook, M.L., Mystery, detective, and espionage magazines, 1983, p. 370. "Price 5 cents."