FOUR best friends * ONE priceless necklace * And an actress with TWO personalities... For Lauren and her friends, living in a luxury London hotel definitely has its perks... Like getting to meet the glamorous Isabella Duval when the megastar checks into Mayfair Park's exclusive Ruby Suite. But it seems that there are two sides to their famous guest. Can the girls find out which is the real Isabella... and which is the act?

 

This book is part of a book series called The Mayfair Mysteries .

There are 160 pages in this book. This book was published 2011 by Random House Children's Publishers UK .

Alex Carter lives in London. The Case of the Ruby Necklace is her first book.