ボブシーきょうだい探偵団 / The Bobbsey Twins
ローラ・リー・ホープによる子ども向け小説シリーズ。比較的裕福な家庭に産まれた双子の男女のきょうだいが描かれている。この小説により Bobbsey twins はいつも一緒にいる似たもの同士の二人という意味で使われることがある。「ボブシーきょうだい探偵団」というタイトルで数冊が和訳出版された（現在は中古本でのみ入手可能）。
YL 読みやすさレベル: 4.0-5.0
Bobbsey Twins – Wikipedia
Bobbsey twins – Dictionary.com
英語無料オーディオブック & e ブック
The Bobbsey Twins – LibriVox
The Bobbsey Twins – Project Gutenberg
Flesch Kincaid Grade level: 4.10 (英語圏で4.10年生レベル). Number of words: 32,068.
The Bobbsey Twins in the Country – LibriVox
The Bobbsey Twins in the Country – Project Gutenberg
Flesch Kincaid Grade level: 4.97. Number of words: 40,420.
The Bobbsey Twins at the Seashore – LibriVox
The Bobbsey Twins at the Seashore – Project Gutenberg
Flesch Kincaid Grade level: 5.65. Number of words: 35,293.
The Bobbsey Twins at School – Project Gutenberg
Flesch Kincaid Grade level: 4.06. Number of words: 36,042.
The Bobbsey Twins at Snow Lodge – Project Gutenberg
Flesch Kincaid Grade level: 3.97. Number of words: 36,478.
The Bobbsey Twins on a Houseboat – Project Gutenberg
Flesch Kincaid Grade level: 3.60. Number of words: 40,830.
The Bobbsey Twins at Meadow Brook – Project Gutenberg
Flesch Kincaid Grade level: 3.86. Number of words: 39,972.
The Bobbsey Twins at Home – Project Gutenberg
Flesch Kincaid Grade level: 3.58. Number of words: 43,211.
The Bobbsey Twins in a Great City – Project Gutenberg
Flesch Kincaid Grade level: 4.21. Number of words: 42,421.
The Bobbsey Twins on Blueberry Island – Project Gutenberg
Flesch Kincaid Grade level: 3.96. Number of words: 42,512.
The Bobbsey Twins on the Deep Blue Sea – Project Gutenberg
Flesch Kincaid Grade level: 3.94. Number of words: 45,278.
The Bobbsey Twins in Washington – Project Gutenberg
Flesch Kincaid Grade level: 4.08. Number of words: 41,282.
The Bobbsey Twins in the Great West – Project Gutenberg
Flesch Kincaid Grade level: 4.05. Number of words: 42,614.
The Bobbsey Twins at Cedar Camp – Project Gutenberg
Flesch Kincaid Grade level: 4.25. Number of words: 42,653.
The Bobbsey Twins at the County Fair – Project Gutenberg
Flesch Kincaid Grade level: 3.70. Number of words: 35,864.
