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Extraordinary adventure letters by post - real science, wild places, and brilliant minds
Welcome to the Mind Expanders Club
Extraordinary Expeditions. Real Letters. Wild Science.
Every month, your child receives adventure letters from two travelling professors – full of wild science, quirky discoveries, and magical thinking. Designed to spark curiosity and inspire young minds.
About the Letters
Two brilliant explorers. Two thrilling stories. One amazing envelope.
Meet Professor Poppy Marlow, a whimsical biologist exploring the wonders of the natural world — and Professor Ignatius Whitley, a daring scientist and explorer uncovering ancient mysteries and scientific secrets.
Every envelope includes:
2 letters of immersive storytelling and fantastic science
2 pages of experiments, puzzles & activities
Hand-illustrated maps, creatures, curiosities
The Magic of a Letter in the Post
In a world of buzzing phones and instant messages, there’s something truly wondrous about opening the mailbox and discovering a real letter — one addressed just to you.
A letter you can hold.
Unfold.
Smell the paper, feel the texture, see the stamp.
A letter that travelled through real hands, over lands and skies, to land softly in yours.
At the Mind Expanders Club, we believe mail should be more than bills and flyers.
It should be a spark of curiosity, a portal to another place, a moment to pause and wonder.
When our letters arrive — filled with adventure, discovery, and imagination — you’re not just reading, you’re journeying.
A Club Like No Other
Letters with scientific storytelling delivered to your door
Global destinations – from jungles to deserts
Experiments & challenges to try at home
Collectible stamps, sketch notes & codes
Designed for ages 6–12 (and curious adults too!)
