The Diary of Wiska Wildflower: The Crystal Cave-New bestselling 7+ series from the creator of Isadora Moon, told in diary format!

Author: Muncaster, Harriet

General fiction (Children's / Teenage)

Published on 4 June 2026 by OXFORD UNIVERSITY PRESS in the United Kingdom.

Wiska Wildflower is back! From the creator of Isadora Moon, Harriet Muncaster. Told in diary format and packed with beautiful full-colour illustrations, this is the enchanting story of Wiska Wildflower's first school expedition-to one of the most dangerous places in all of Wiskling Wood! We're going on a school trip to Wiskling Mountain! We have to read a map and make our own camp and find and cook our own food-it's a BIG deal.

Wiska is excited to be paired with Citrine for the school trip, but when Citirne persuades her to join her on a secret mission to find a rare starflower, she begins to have doubts. After disaster strikes, the friends seek sanctuary in a hidden spot in Wiskling Wood. What they find there is incredible and life-changing. But will their friendship survive this dangerous adventure? Book 2 following the Children's bestseller The Diary of Wiska Wildflower: The New School.