Late 90s/early 00s illustrated children’s book. Girl swallows a marble and can talk to animals.

[Erin]

I’ve been searching for this book for so many years! Has a similar plot to Labyrinth, a girl wishes her baby brother to go away and he’s taken, or taken in exchange for a magic marble? In any case, she swallows the marble and can talk to animals and goes on a quest to get her brother back. Please help me!!

[Rainbowheart]

Outside Over There?

But that's a baby sister. Was the baby taken by goblins or fairies?

[Kris]

Erin, around what year did you read this book? A range of years is fine.

Would you call this a picture book (about 32-48 pages) or a children's novel?

[Rebecca]

Kimbo's Marble by Amy Herrick. My best friend was looking for this exact book today and I came across your post while searching!

[Kris]

Link for Rebecca's suggestion - Kimbo's Marble by Amy Herrick

Here's one cover image on LibraryThing.com - https://www.librarything.com/work/193...