Eleven Kids, One Summer is a children's novel written by Ann M. Martin in 1991.

The story also reveals that the youngest child, who had yet to be born in the previous book, is a boy named Keegan according to Mrs. Rosso's naming scheme.

Each chapter entails a story featuring a child of the family as they find some sort of adventure during their vacation.

The children are: Abigail (Abbie), Bainbridge, Calandra (Candy), Dagwood (Woody), Eberhard (Hardy), Faustine and Gardenia (Dinnie) (the twins), Hannah, Ira, Janthina (Jan) and Keegan.

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