publisher race against time 
Girl Detective is a series replacing the long - running Nancy Drew mysteries series , which had been running since 1930 , first from ___MASK23___ and latterly from Simon & Schuster . Stories are written in first person narrative style with Nancy herself describing all the action , and feature updated and overhauled versions of the main Nancy Drew characters . In 2013 , The series was ended and a new current series called Nancy Drew Diaries was launched . Race Against Time is the 66 novel in the Nancy Drew mystery series by Carolyn Keene . It was published by Wanderer Books , an imprint of ___MASK71___ in 1982 . It has 20 chapters and over 200 pages . A pen name (" nom de ___MASK32___ ", or " literary double ") is a pseudonym ( or , in some cases , a variant form of a real name ) adopted by an author and printed on the title page or by - line of his or her works in place of their " real " name . A pen name may be used to make the author ' s name more distinctive , to disguise his or her gender , to distance an author from some or all of his or her previous works , to protect the author from retribution for his or her writings , to combine more than one author into a single author , or for any of a number of reasons related to the marketing or aesthetic presentation of the work . The author ' s name may be known only to the publisher , or may come to be common knowledge . Nancy Drew is a fictional American character in a mystery fiction series created by publisher Edward Stratemeyer . The character first appeared in 1930 . The books are ghostwritten by a number of authors and published under the collective pseudonym Carolyn Keene . Over the decades , the character evolved in response to changes in US culture and tastes . The books were extensively revised and shortened , beginning in 1959 , in part to lower printing costs and to eliminate racist stereotypes , with arguable ___MASK95___ . In the revision process , the heroine ' s original character was changed to be less assertive and more feminine . In the 1980s , an older and more professional Nancy emerged in a new series , " The Nancy Drew Files ", that included romantic subplots for the sleuth . The original " Nancy Drew Mystery Stories " series started in 1930 , and ended in 2004 . Launched that same year , the " Girl Detective " series features Nancy driving a hybrid electric vehicle and using a cell phone . In 2013 , the " Girl Detective " series ended , and a new current series called " Nancy Drew Diaries " was launched . Illustrations of the character evolved over time to reflect contemporary styles . The character proves continuously popular worldwide : at least 80 million copies of the books have been sold , and the books have been translated into over 45 languages . Nancy Drew is featured in five films , two television shows , and a number of popular computer games ; she also appears in a variety of merchandise sold around the world . The Nancy Drew Notebooks are a series of books featuring the amateur sleuth Nancy Drew . The stories are aimed at younger readers and portray an 8 - year - old Nancy and her friends in the third grade . Each book is illustrated with eight black and white drawings . The series original illustrator was Anthony Accardo , later volumes were illustrated by Jan Naimo Jones , and Paul Casale . The " notebook " in the series title refers to the " blue notebook in which [ Nancy ] keeps track of her mysteries and writes down what she learns ". The stories end with a moral message telling the reader what Nancy has learned . The cover layout has changed and evolved throughout the series . It was initially published by the Minstrel imprint and later switched to the ___MASK85___ imprint . The series ended with volume # 69 in December 2005 , and was relaunched ( from volume 1 ) as Nancy Drew and the Clue Crew . The Dana Girls was a series of young adult mystery novels produced by the ___MASK53___ . The title heroines , Jean and Louise Dana , are teenage sisters and amateur detectives who solve mysteries while at boarding school . The series was created in 1934 in an attempt to capitalize on the popularity of both the Nancy Drew Mystery Stories and the Hardy Boys series , but was less successful than either . The series was written by a number of ghostwriters and , despite going out - of - print twice , lasted from 1934 to 1979 ; the books have also been translated into a number of other languages . While subject to less critical attention than either Nancy Drew or the Hardy Boys , a number of critics have written about the series , most arguing that the Dana Girls ' relative lack of ___MASK95___ was due to the more dated nature of the series . The Nancy Drew Files , or the " Nancy Drew Case Files ", is a detective fiction series started in 1986 and released by ___MASK71___ , New York . It is a spin - off of the original series of novels featuring Nancy Drew , with a greater emphasis on adventure , malice and romance . All the books have been written under the pseudonym Carolyn Keene . This series has been targeted at readers who are age eleven and up . With a new book released almost every month , 124 titles were released in 11 years . More than 17 million copies are in print and the books have appeared on the bestseller lists of " Publishers Weekly ", B . Dalton , and Waldenbooks . In 2014 , ___MASK71___ started releasing this series in eBook format . The ___MASK53___ was the producer of a number of mystery series for children , including Nancy Drew , the Hardy Boys , the various Tom Swift series , the Bobbsey Twins , the Rover Boys , and others . Carolyn Keene is the pseudonym of the authors of the Nancy Drew mystery stories and The Dana Girls mystery stories , both produced by the ___MASK53___ . In addition , the Keene pen name is credited with the Nancy Drew spin - off , " River Heights and the Nancy Drew Notebooks .