What Happened When Rex Disappeared?

DISCONTINUED

So I started this book in Feb. 2021 and decided to continue it. It has also been in my drafts, so i didn't publish it. but here we are. Also sorry if my spelling is bad, i have been in online school with no spelling tests-

I did not make the Lego Movie Universe (LMU) or the characters, I'm just writing this story.

The is about how Rex, from The Lego Movie 2, didn't actually disappear, but actually went to his alternate universe. The book contains Emmet×Lucy because why not