Front cover of The Dragon’s Secret
ZOOTECTIVES · CASE 03 · Álex del Olmo

The Dragon’s Secret

Four pieces. Three chests. One very sneaky raccoon. An invitation to Vera’s workshop sends Cleo and Gerald after a missing red piece. Their trail leads past the Sagrada Família, Casa Batlló and a colourful dragon in Park Güell. Can a new way of looking help them solve the puzzle?

Paperback · 40 pages · 5 × 8 in
British English · To share at ages 5–6

British English edition · Coming soon

Submitted to Amazon for review on 27 October 2026. You can explore the real interior now; the purchase link will be added once Amazon makes this edition available.

Look inside

The Spanish edition is a separate book. View the Spanish edition

Real pages from this edition

Step inside the mystery

Three real spreads from the British English paperback. Select a spread to enlarge it and read the text.

From the story to the table

Make room for a new idea

Look at a balcony, a shape or a gap between two paper pieces. What else could it become? Try the free paper-mosaic activity, then compare the different pictures you can make with the same pieces.

Download the free activityRead the activity guide

Before choosing this book

What age is it for?

For shared reading at ages 5–6. The real sample helps you judge the text and illustrations for your child.

Is the story bilingual?

This edition is entirely in British English. The Spanish edition is sold separately.

Is it an official guide to Barcelona?

It is a fictional detective adventure inspired by Gaudí’s Barcelona. The illustrations interpret the settings; it is not an official visitor guide.

More mysteries to share

ZOOTECTIVES · Álex del Olmo