SOLVED. YA book where children are locked/chained to adults but main character gets away somehow. [s]

[Joey]

YA book where children are locked/chained to adults but main character gets away somehow, she goes to some place in the town/village/city where she learns more about the society being messed up

[Kym]

Museum of Thieves by Lian Tanner?

If not, can you tell us when you read it?

[Joey]

YES!!! This is it!! I read it in like 2012, given to me by a friend and just could never remember the name of the book!! Thank you!!!!

[Kym]

No worries Joey :)