Author: Black, Holly, DiTerlizzi, Tony
General fiction (Children's / Teenage) 
Published 17/08/2023 by Simon & Schuster Ltd in the United Kingdom as part of The Spiderwick Chronicles series 
Paperback | 144 pages, black & white illustrations throughout
Celebrate the 20th anniversary of the international bestselling Spiderwick Chronicles with the first instalment in the adventures of the Grace children.  After finding a mysterious handmade field guide in the attic of the ramshackle old mansion they've just moved into, the Grace children – Jared, Simon and Mallory – discover that there's a magical and maybe dangerous world existing parallel to our own – the world of faerie.    The children want to share what they know, but the faeires will do everything possible to stop their secrets being revealed . . .