About This Book
A parent should reach for this book when their child is ready for a high-stakes, classic mystery that celebrates independence and the thrill of discovery. While it begins as a simple hiking holiday, the story quickly evolves into a pulse-pounding escape mission. It is an ideal choice for kids who enjoy stories where children are the heroes of their own narrative, solving problems without adult intervention. The book centers on themes of bravery, sibling loyalty, and the awe of the natural world. While written in a mid-century style, the fast-paced plot involving a secret mountain base and a theatrical villain keeps modern readers engaged. It is a perfect 'bridge' book for moving from shorter chapter books into more complex, atmosphere-driven adventure novels.
What Parents Should Know
Sensitive Topics
1. DISTRESS: There is a scene involving the children being chased by a pack of wolves, which may be frightening for younger or more sensitive readers. The villain's 'wings' experiment and his treatment of his subjects involve a level of megalomania that can feel intense during the climax.
Ideal Reader
An 8-to-10-year-old who loves the outdoors, secret passages, and stories where kids are smarter and more capable than the 'bad guys.'
Parent Prep
Be ready to reassure younger readers during the wolf chase and the climax, as the tension increases significantly when the children are captured. A child expressing boredom with realistic fiction and asking for something 'exciting' or 'dangerous' where the stakes feel real.
Age Experience
Younger readers (8-9) will focus on the cool gadgets and the funny antics of Kiki the parrot. Older readers (10-12) will appreciate the survival elements and the logistical challenge of escaping the mountain base.
What Makes It Special
Unlike many modern adventures, this book leans heavily into the 'techno-thriller' elements of its time, featuring a hollowed-out mountain base that feels like a precursor to a James Bond film.
Read plot summary
Four children (Jack, Philip, Dinah, and Lucy-Ann) and their clever parrot, Kiki, go hiking in the Welsh mountains. They stumble upon a secret entrance to a hollowed-out mountain where a mad scientist is conducting gravity-defying experiments. After being captured, they must use their wits, Philip's way with animals, and their teamwork to escape and stop a villainous plot.
This overview was generated by AI based on the book's content and reviews, and may not capture every nuance.
Discussion Prompts
1
Philip has a special way with animals. How does his kindness to the dogs and wolves change the outcome of their adventure?
2
If you found a secret door in the side of a mountain, would you go inside like the children did, or go get help first?
3
Kiki the parrot often says things that make the villains confused. Do you think Kiki is just a pet, or is she a full member of the team?
4
The children have to work together to escape the mountain. What was each person's most important contribution to the team?
