With this book, we reach the final adventure in the Dorothy Dixon Air Mystery Stories. First, our young heroine had to learn how to fly (Dorothy Dixon Wins Her Wings), after which she stopped some smugglers (Dorothy Dixon and the Mystery Plane, and then she had to help find a young man find his stolen inheritance (Dorothy Dixon Solves the Conway Case). I was curious to see what type of flying would lead Dorothy into her final mystery; what I discovered, however, is that the author (Noel Sainsbury, Jr. writing under his wife's name of Dorothy Wayne) must have run out of flying tales, as our title character never sets foot in a plane in her last adventure! Instead, readers get a tale that is yet another twist on the whole "twins switching identities" trope in an outlandish adventure involving the United States government, spies, international thieves, and a deadly invention that could kill millions!
Dorothy Dixon and the Double Cousin begins
with what appears to be a simple case of mistaken identity. While
purchasing a Christmas gift for her father, Dorothy Dixon is accosted by
a young man who wants to know "[h]ow in the world did you escape?" (p.
15). Dorothy tries to ignore the man, but when he finally addresses her
by the name "Janet" (p. 16), she has no choice but to set him
straight. What is rather odd is that without knowing who this man is,
or ever hearing Janet's last name, Dorothy somehow knows he is referring
to Janet Jordan, her first cousin (p. 17). The author explains that
Janet's and Dorothy's mothers were twins, which could account for how
closely the two cousins resemble one another (p. 18), and Dorothy admits
she has been mistaken for Janet before (p. 18), although this must have
happened "off-screen," so to speak, since there has never been any
mention of a cousin, or of the fact that Dorothy's mother had a twins
sister. In any event, this sets the stage for the latest mystery,
because Dorothy learns her cousin is in serious trouble, and, of course,
she is only too willing to jump in and help.
This final story is a departure from the previous three books. While the first three stories involved Dorothy flying (albeit only briefly at the beginning of the third book), this book does not see Dorothy go anywhere near a plane. Instead, she agrees to aid her cousin's fiance rescue Janet Jordan from the dilemma in which she has found herself! Janet awakes from sleepwalking in her apartment home to find herself strategically hidden behind a screen in the room where her father is meeting with a number of business associates - unscrupulous business associates, that is! When they discover her, she pretends to still be asleep, but the crooks do not believe her, so her father (Dorothy's uncle!) is forced to keep her locked in her room until they can determine what she knows. Dorothy's friend, Bill Bolton, enlists the aid a Secret Service agent (Ashton Sanborn) to help them. He immediately comes up with a plan that involves Dorothy switching places with her cousin, so she can be taken captive to the home of a professor who is creating a formula for the United States government - and who is, unwittingly, housing two foreign agents in his home who plan to steal that formula once it is complete! It is up to Dorothy to play the innocent young Janet, who purportedly knows nothing of what is going on, while at the same time, work undercover to steal the formula before the foreign agents do!
This
is far from your typical girls' series book mystery. The danger is
considerably greater, as Martin and Laura Lawson, the foreign agents,
are murdering thieves who will not hesitate to kill anyone who keeps
them from their objective (p.135)! Dorothy is kept on her toes,
especially with Mrs. Lawson, who is constantly trying to trip up "Janet"
to reveal what she knows. But Dorothy is too smart, and she eventually
pits the Lawsons against one another, accusing Mr. Lawson of making
overtures to her, which starts the accusations flying between the two
crooks! Meanwhile, Dorothy makes a friend in a young made named
Gretchen who recognizes Dorothy as the aviatrix who she once met and got
an autograph (forcing Dorothy to reveal herself and enlist Gretchen's
aid). She also has the help of the major domo of the house, Mr.
Turnbridge, who, it turns out, is a Secret Service agent himself! Dorothy has to use her wits to escape being revealed when Mr. Lawson captures her in the library right as she is about to get away with the formula! It's a deadly showdown, with the cavalry (including Bill Bolton and Ashton Sanborn) arriving at just the right moment to save the day!
The book offers up some fodder for discussion, that's for sure. First, the entire "twin cousins" premise makes me think of The Patty Duke Show (1963-66), which featured cousins, Patty and Cathy Lane, who were identical in appearance. In more general terms, it reminds me of Mary and Marilyn: Double-Trouble Twins, published five years after this book came out, in which twin sisters that were separated at birth switch places to experience once another's life. Then, there is the more easily recognized story, The Parent Trap, which also features twin sibling separated at birth who switch places. This idea seems to be a common trope for children's stories. Second, the book features some very high-level vocabulary, with words that even an English-major like me did not recognize - such as "equinoctial" (p. 31), which in this case, refers to strong storms, usually experienced in autumn; "demitasse" (p. 39), which refers to a small cup, typically of ceramic or porcelain, used to serve strong coffee; "legerdemain" (p. 62), which is the skillful use of one's hands, normally when performing conjuring tricks; "trousseau" (p. 65), which is a collection of clothing, linens, and personal items a bride assembles for her marriage; and "somnambulistic" (p. 174), which refers to the actions, characteristics, or state of being one who sleepwalks. The book definitely offers some interesting new vocabulary!
There is one particular scene of dialogue that made me do a double-take (no pun intended) and had my laughing out loud. When Janet's fiance is describing the trouble his bride-to-be faces, he informs Dorothy, Bill, and Ashton that she is to be moved from her apartment to the professor's house at midnight that very evening, to which the Secret Service agent replies, "It is now one-thirty. That gives us exactly eleven and a half hours in which to get her out of their hands" (p. 29). Now, I may not be a fan of math, but even I know that eleven and a half hours after one-thirty would be one in the morning, not midnight! Apparently, not only could the author not count, but neither could the editor nor the publisher, since no one caught the error before the book went to print!
And with this, we've reached the end of the Dorothy Dixon Air Mystery Series (although this book had no airplane flights or mysteries in the air!). There is a possibility that Dorothy appeared in at least one of Bill Bolton's books, as this one has a reference to Bill Bolton and the Winged Cartwheels (p. 24), and a quick glance through the pages of that book reveals several references to "Mr. Dixon" - so, at some point, I'll have to read that one and see if our adventure-loving aviatrix appears there. I would be curious to know if this series ended due to low sales, due to lack of interest by the publisher, or due to Sainsbury's own lack of interest in continuing the series.
RATING: 8 shivering fox terrier puppies out of 10 for sending Dorothy Dixon off with one wild tale of spies, deadly weapon formulas, undercover work, and cousins ... identical cousins ... two of a kind!








