Might be worth posting this on r/tipofmytongue too!
can't help you with the name, but update us if you find it please! it sounds interesting
I can't help with the name.. but it's definitely a book, because oddly enough it sounds super familiar! Best of luck!
Goodreads has a “what was that book?”, or at least they used to.
Per [rule 3.4](https://www.reddit.com/r/Books/wiki/rules), your post is better suited for asking in /r/WhatsThatBook or /r/tipofmytongue.
Is it Circus of Adventure by Enid Blyton?