The Playground Tunnel

Some doors lead to adventure... others lead to mysteries waiting to be solved.

Lila, Max, and Nora discover something strange at the playground...

A tunnel that wasn't there before.

When they crawl inside, they don't come out the other side-they land in a vast desert filled with ancient ruins and a hidden city lost beneath the sand.

But something is wrong.

A giant stone door stands sealed shut, and no one knows how to open it. Without what's inside, the people of the desert are running out of time.

Max wants to act fast.
Lila wants to figure it out.
Nora knows they need to work together.

Because this isn't a problem one person can solve alone.

Can the Secret Door Club unlock the mystery before it's too late?

A magical adventure about teamwork, problem-solving, and never giving up.

• Exciting mystery + desert adventure
• Short, easy-to-read chapters for ages 5-8
• Encourages teamwork and problem-solving
• Relatable characters kids grow with
• Perfect for early readers or read-aloud time

• Ages 5-8
• Fans of adventure series like Magic Tree House
• Beginning chapter book readers
• Classroom and bedtime reading

The Playground Tunnel is Book 3 in a magical series where every door leads to a new world-and a new challenge.

Open the tunnel... and discover what's hidden inside.