Our lips are sealed by Eliza Willard
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The case of the unicorn mystery by Heather Alexander, Ilse Wagner
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Mary-Kate & Ashley starring in holiday in the sun by Eliza Willard
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It's a twin thing by Judy Katschke
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Dare to scare by Judy Katschke, Mary-Kate Olsen, Ashley Olsen
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Winning London by Elizabeth Kruger
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The sleepover secret by Judy Katschke
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The case of the Icy Igloo Inn by Judy Katschke
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Mary-Kate & Ashley Olsen by Tamara L. Britton
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The case of the Hollywood who-done-it by Melinda Metz
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School dance party by Eliza Willard
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The case of the weird science mystery by Judy Katschke
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Publishing History

This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.  This graph charts editions published on this subject.
Editions Published
Year of Publication

Related...

Subjects
Juvenile fiction, Children's fiction, Twins, Fiction, Olsen twins (fictitious characters), fiction, Mystery and detective stories, Detective and mystery stories, Twins, fiction, Sisters, Sisters, fiction, Adventure and adventurers, fiction, Juvenile literature, Biography, Teenage girls, Actors, Actors and actresses, Child and youth fiction, Girls, fiction, Models (Persons), Women
Places
United States, Paris (France), School, Australia, Bahamas, California, London (England), Malibu, Malibu (Calif.), Rocky Mountains
People
Mary-Kate Olsen (1986-), Ashley Olsen (1986 -), Mary-Katie Olsen (1986-)
Times
21st century

Prolific Authors

who have written the most books on this subject
Judy Katschke, 16 books
Melinda Metz, 11 books
Megan Stine, 11 books
Eliza Willard, 8 books
Mary-Kate Olsen, 7 books
Ashley Olsen , 5 books
Louise Gikow, 5 books
Heather Alexander, 3 books
Carol Ellis, 3 books
Alice Leonhardt, 3 books
Diana G. Gallagher, 2 books
Lisa Fiedler, 2 books
Damon Romine, 2 books
Nancy Butcher, 2 books
Wendy Wax, 2 books
Deborah Perlberg, 2 books
Mallery Avidon, 1 book
Harrison, Emma., 1 book
Jacqueline Laks Gorman, 1 book
Rosalind Noonan, 1 book
Pauline Preiss, 1 book
Elizabeth Kruger, 1 book
Bailey J. Russell, 1 book
Kathleen Tracy, 1 book
Tamara L. Britton, 1 book