The Mystery of the Darkstone

From Author Wars - https://authorwars.com/books/the-mystery-of-the-darkstone-1244600.html

Overview:

Title: The Mystery of the Darkstone
Author: Val Rutt
Year: 2006
Type: Novels
Series: Legacy of the Heartstones
Number in Series: 2

Editions/Publications:

Unknown. The Mystery of the Darkstone (Unknown, Val Rutt, Puffin, ISBN-10: 0141317485, £5.99, 262 pages, Trade Paperback, Novel)

Genres/Themes:

young-adult fantasy