Emily and Jess Volnik have returned for another Scottish adventure, joining their old friend Tommy and Mr Maconochie, the new owner of Castle Keep, on a trip to Loch Ness, where a new expedition is determined to find the fabled monster.

The fun-loving Boggart - a mischievous shape-shifting spirit who has lived in the castle for centuries -comes along for the ride, but this time the Boggart has a serious mission. His cousin Nessie is trapped in the monster shape he took on long ago, and it's up to the Boggart to keep Nessie from being discovered by the expedition's high-tech equipment. Is modern science any match for the Boggart's ancient magic?

This book is part of a book series called Puffin .

This book has been graded for interest at 9-11 years.

There are 256 pages in this book. This book was published 2018 by Penguin Books Ltd .

SUSAN COOPER is the Newbery Award-winning author of dozens of books, including The Boggart and the acclaimed The Dark Is Rising series.