In the lagoon near Old Mouse City, cavemice have discovered a giant oyster. It holds a pearl of megalithic proportions! Since the mice of the lagoon don't have the tools to fish the oyster out of the water, they call on Geronimo Stiltonoot to help. Can figure out how to get the pearl before the saber-toothed tigers catch wind of it?

 

This is volume 12 in Geronimo Stilton Cavemice .

. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read.

There are 128 pages in this book. This is a chapter book. Publishers market early chapter books at readers aged 6-10 years. This book was published 2017 by Scholastic US .

In his spare time, Mr. Stilton collects antique cheese rinds. But what he most enjoys is writing books where he tells his fabmouse adventures!