Ever played fetch with a four-eyed Grerk or made pancakes with a giant orange squurm? Nelly isn't scared of monsters. In fact she babysits for them. Every night, Nelly the monster sitter looks after a new friend, but its never easy...

Nelly can't believe her luck when she finds out that the Water Greeps live in an underwater penthouse. The only problem is Water Greeps are mischievous monsters, and Nelly is going to have to get a bit wet!

This is book 3 in Nelly the Monster Sitter .

This book has been graded for interest at 7-9 years.

There are 88 pages in this book. This book was published 2012 by Hodder & Stoughton General Division .

Kes Gray is the also author of Mom and Dad Glue, the story of a troubled little boy who faces up to the challenge of his parents' divorce.