Abby and the Mystery Baby is the 28th book in The Baby-Sitters Club Mystery series.

Back Cover Summary[edit | edit source]

When Abby comes home from school one day and finds a baby on her front porch, she's completely mystified. Where did he come from? And why was he left on the Stevensons' porch?

Abby's mom convinces the authorities to let the baby, whom the family dubs Eli, stay at their house while the search for his parents is conducted. Abby's thrilled, but she can't just sit back and wait to see what happens. Abby and the BSC won't give up until they get some answers for Eli!

Summary[edit | edit source]

Characters in this book[edit | edit source]

Abby's Family

Extended Family

BSC Members

Kids

Teenagers

Adults

Places in this book[edit | edit source]

Trivia[edit | edit source]

  • Rachel Stevenson knew what was going on the entire time, making the mystery just for the BSC to solve. Kristy suspected the temporary nanny. Mallory and Jessi suspected a woman from their writing class at the library.
  • This is the first introduction of Abby's aunt Miriam and cousin Daniel Goldberg.
Mystery Books
#1 Stacey and the Missing Ring | #2 Beware, Dawn! | #3 Mallory and the Ghost Cat | #4 Kristy and the Missing Child | #5 Mary Anne and the Secret in the Attic | #6 The Mystery at Claudia's House | #7 Dawn and the Disappearing Dogs | #8 Jessi and the Jewel Thieves | #9 Kristy and the Haunted Mansion | #10 Stacey and the Mystery Money | #11 Claudia and the Mystery at the Museum | #12 Dawn and the Surfer Ghost | #13 Mary Anne and the Library Mystery | #14 Stacey and the Mystery at the Mall | #15 Kristy and the Vampires | #16 Claudia and the Clue in the Photograph | #17 Dawn and the Halloween Mystery | #18 Stacey and the Mystery at the Empty House | #19 Kristy and the Missing Fortune | #20 Mary Anne and the Zoo Mystery | #21 Claudia and the Recipe for Danger | #22 Stacey and the Haunted Masquerade | #23 Abby and the Secret Society | #24 Mary Anne and the Silent Witness | #25 Kristy and the Middle School Vandal | #26 Dawn Schafer, Undercover Baby-sitter | #27 Claudia and the Lighthouse Ghost | #28 Abby and the Mystery Baby | #29 Stacey and the Fashion Victim | #30 Kristy and the Mystery Train | #31 Mary Anne and the Music Box Secret | #32 Claudia and the Mystery in the Painting | #33 Stacey and the Stolen Hearts | #34 Mary Anne and the Haunted Bookstore | #35 Abby and the Notorious Neighbor | #36 Kristy and the Cat Burglar
Super Mysteries

#1 Baby-sitters' Haunted House | #2 Baby-sitters Beware | #3 Baby-sitters' Fright Night | #4 Baby-sitters' Christmas Chiller

Other Series

Baby-Sitters Club | Super Special | Portrait Collection | Readers' Request | Baby-sitters Club: Friends Forever | California Diaries | Baby-Sitters Little Sister | The Kids in Ms. Colman's Class

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