The Accidental Diary of B.U.G.: Sister Act

This book is not purchasable in your country. Please select another book.

Listen to a sample

What to expect

Brought to you by Penguin.

The third hilarious accidental diary from Billie Upton Green (don't call her BUG!)


There's an exciting addition to the Upton Green family (and it's not whatever Mr Paws has left on the living room carpet...).

But getting a new little sister isn't nearly as straightforward as Billie expects. Why are there so many rules? It's been weeks and weeks, and she still hasn't been able to hold the baby up at Show & Tell.

Luckily, the school musical is in full swing, giving Billie the perfect distraction. She just needs to watch out for Painy Janey, who has her eyes on the main part and doesn't care what gets in her way...

"Ideal for fans of Tom Gates, or Pamela Butchart's books . . . a wonderful new series" - The Week Junior

"Fun, funny, inclusive and warm-hearted, these books are pure, cheery joy" - Sophie Anderson

© Jen Carney 2022 (P) Penguin Audio 2022

Critics Review

  • This cheery, highly illustrated diary story, more rooted in contemporary reality than Liz Pichon’s Tom Gates books, is the first in a series that’s sure to find devoted fans.

    The Guardian
  • A sparky, funny new series perfect for fans of Diary of A Wimpy Kid.

    Daily Mail
  • Ideal for fans of Tom Gates, or Pamela Butchart‘s books . . . a wonderful new series.

    The Week Junior
  • I really enjoyed reading the adventures of Billie Upton Green (not Bug!!)! Billie is a delightful and relatable character, and her escapades are both funny and heart-warming. I particularly enjoyed the inclusivity in the text, and it’s a real joy to see such positive LGBTQ+ representation in children’s books. Jen has written a real treat for younger readers, and the artwork is fabulous, too!

    L. D. Lapinski, The Strangeworlds Travel Agency
  • Readers will love Billie’s adventures, and her funny, doodle-filled way of sharing them, as much as they love the Dork Diaries or Wimpy Kid stories, and it’s great too to see such a warm celebration of diverse family life.

    Andrea, LoveReading4Kids

Subscribe to our newsletter

Sign up to get tailored content recommendations, product updates and info on new releases. Your data is your own: we commit to protect your data and respect your privacy.