Found: Sci-fi other dimensions children

I'm looking for a book I read a long time ago. It had a blue/turquoise cover (at least that's what I remember) and had a bunch of kids who discover a machine or something that allows them to travel to other worlds/dimensions. This was connected in some way with their parents. IIRC it ended with a cliffhanger with the kids in another world where their parents were considered criminals? It was hardcover and had some extra stuff (like bookmarks or something) in it.
I don't really remember much so sorry if this is a little vague

Some overlap with Chris Archer's Mindwarp series.

>2 beyondthefourthwall: No, not those.
I think mine was slightly longer. I read it 5-6 years ago and it would be MG/YA

Some tie in to the Greystone Secrets by Margaret Peterson Haddix. First book is The Strangers and dates from 2019. Good luck.

>4 pjfarm: No, its not them. The cover was more light blue/turquoise as I remember and I'm pretty sure I read this before 2019 (although that's not a given and I may be misremembering). Thank you for trying though

This cover is wrong and I can't tell if there are multiple kids involved, but maybe some of the tags will be useful to look at: A thousand pieces of you

Overlap with another Haddix series The Missing. The kids learn their parents kidnapped them from different time periods and travel through time to set things right. The first book specifically ends on the cliffhanger of them all realizing they were kidnapped.
(Also, this isn’t the default cover on library thing, but my cover for the first book was mostly shades of blue.)

No none of that really clicks. The one scene I do seem to remember clearly from the book occurs at the climax or near the end? I remember it as the kids seeing a wanted poster of their parents in a dystopian world? Another thing was that something about the author struck me (as if I knew them from somewhere else?)

Could this be in relation to the Diadem series by John Peel? It's been a very long time since I read them so there may not be a correlation.

No, I read this book around 5 to 6 years ago so its probably newer and the children were all from Earth. I tried to remember more about it but it feels like it's rattling in the back of my brain just out of reach! So frustrating.

Found it! It's A Mutiny in Time by James Dashner !!!! I apparently misremember the cover because it shows up as deep red and its not dimensions but rather time travel!
Thank you to everyone who tried to help!

Touchstone: A Mutiny in Time