From the imagination of Tony DiTerlizzi and Holly Black, comes the international bestselling series about the Grace siblings who find a mysterious handmade field guide in the attic of the ramshackle old mansion they’ve just moved into.

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 . . .