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"Seriously Maudie? The mad professor is obviously a boy, had you even seen the movie?"
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Miss Tan: What's wrong? Tell me.
Maudie: I lost my notebook.


"The Case of the Very Lost Notebook" is the tenth episode of The InBESTigators.


When Maudie loses her beloved notebook Ezra, Ava and Kyle band together to reunite their friend with her most prized possession.


In the art room, Ezra, Ava and Kyle start yet another case report from the Inbestigators, considering this a case that will be quite historic, and that they will focus on and not be distracted by anything, however, Kyle ends up distracted by the salami in the Ezra sandwich. Soon, they resume saying that it is the first case that Maudie does not solve, due to the fact that who needed a solved case was Maudie herself.

In the morning, Maudie arrived late in the room and when she entered, she went straight to her drawer to look for something, which makes Miss Tan curious and asks what is wrong with Maudie, but she doesn't answer and keeps looking, making a mess, but can't find. So, she goes straight to her table to look there, and when she saw that Maudie was quite upset, both Ava and Miss Tan started to get worried. Miss Tan, when trying to help Maudie, sees that she is missing, and Ava realizes that she is sitting under the table, completely upset. Miss Tan, together with Ava, Ezra and Kyle, go down on the table and ask 'Maudie what's wrong, and she, to everyone's shock, reveals that she had lost her notebook.

Ezra, Ava and Kyle explain how important Maudie's notebook was, where she always used to write the facts of each case, keep special things and also pull the elastic while thinking, and it was unbelievable that she had already lost it that she always puts the notebook with the zipper tightly closed. Miss Tan decides to help her search with her other friends, but Maudie denies all possible places where she can be, because she has already searched there, and also denies the fact that she slipped and fell into her underwear, as example of Kyle. Miss Tan sends the entire room to search the room, but they can't find it. So, she decides to make Maudie remember while trying to concentrate on classes, but she can't. So, when Miss Tan asks how many sides an octagon has, Maudie answers wrongly several times, making everyone even more concerned. So, they decide to go out and question Maudie, however, her answer is always "I can't remember", which makes everyone unbelievable that they didn't get any facts.

Cast & Characters

Actor Character
Anna Cooke Maudie Miller
Aston Droomer Ezra Banks
Abby Bergman Ava Andrikides
Jamil Smyth-Secka Kyle Klimson
Maria Angelico Miss Tan
James Saunders Mr. McGilick
Madeleine Jevic Miss Parides




  • Notebook


  • The InBESTigators
    • Maudie Miller
    • Ezra Banks
    • Ava Andrikides
    • Kyle Klimson

Report Details


  • Ezra Banks
  • Ava Andrikides
  • Kyle Klimson

Crime Details






  • This is the second episode where the case report does not occur in the Granny Flat.
  • This is the first episode that the case report occurs in trio.
  • This episode follows a big development on Maudie:
    • This episode reveals more about Maudie’s backstory and her inner world, as her mum passed away as Maudie was still a child.
  • This episode is the sixth to be filmed entirely at Moorabbin Primary School.
  • The InBESTigators: Teaching Toolkit recommended to watch this episode to understand Maudie's development during it.[1]

Cultural References

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  • In a flashback, Maudie pulls the rubber band to think while solving the case, and Kyle starts asking her all the time if she already knows who she is. This is similar to an episode of the TV series Sherlock.
  • The practise of solving the steps, used by Kyle, is widely used to solve crimes today.
  • The helmet worn by Mr. McGillick is similar to the hat worn by the character Bob the Builder from the series of the same name.



  1. ↑ The InBESTigators: Teaching Toolkit, page 15