After the rainbow bend, the four friends come to the Forest Lookout — but the marble stops under the treehouse, again and again. Bubbo doesn't change the track. He pulls on his goggles and looks closely at every little part — and finds a small piece of bark stuck in the rail.
10 illustrated pages · About 6 minutesRead together
Off to the Forest Lookout · Page 2 of 10
Bubbo Puts On His Goggles · Page 3 of 10
The Same Place Again · Page 4 of 10
Every Time — Right Here · Page 5 of 10
A Little Piece of Bark · Page 6 of 10
Ready to Try Again · Page 7 of 10
Ding — The Finish Bell Rings · Page 8 of 10
Doing Every Little Part · Page 9 of 10
The Next Job · Page 10 of 10
Each friend brings one idea — and every one of them can be found in the story text below.
Stopping in the same place every time is the most important clue. Look closely first — then make a change.
2A · 3A small piece of bark stuck in the rail is enough to block the marble. Very small things can change the result.
4Change only one thing each time, and you can tell which change actually helped.
4 · 5AThe steeper the slope, the faster the marble goes — and too fast, it may not make the turn.
1Every word from the picture version, laid out here — for reading together, printing, or listening with a screen reader.
The Secret in the Goggles
A Rollii & Friends Story
Ages 3–7 · Read Together
Let's go — let's see the new track!
There are tall wooden posts, and green leaves.
Maybe it's not fast enough?
Look at the route first
After the rainbow bend, everyone comes to the Forest Lookout. The marble takes two turns, then stops under the treehouse.
Should we add a jump ramp?
Let's try once more — but don't change the track yet.
Watch, don't change
Bubbo doesn't answer straight away. First he pulls on his blue goggles and looks closely at where the marble stopped.
It stopped in the same place again.
Mark where it stopped
The marble sets off again, rumbles down the track, and stops in exactly the same place.
Every time — right here.
Under the shadow — there's something small and green!
Let me lift the leaf and look.
Bubbo puts his eyes a little closer, and sees the leaf's shadow falling across the track.
It's a little piece of bark! It's stuck in the track.
No wonder the marble can't get through!
Once the bark is out, let's change only this one thing. Okay?
Here we go — let's watch it again!
Test the idea you had
Bubbo takes the bark away, Mossy sets it aside, Rollii puts the marble back, and Giggle waits quietly.
So even a tiny detail can change the whole route.
You checked every single spot so carefully — that is being thorough.
Tiny detail, big difference
The marble rolls past the treehouse, rumbles all the way to the finish — ding! The four friends cheer.
Doing every little part carefully — that is what it means.
I'll take out my notebook.
Do every detail well
Mossy opens his notebook and writes down what they found today.
Our next job looks like a lot of tidying up!
So many pieces — I want to help too!
Look first, then sort
Right beside the finish, a mysterious leaf drifts down — and drawn on it are lots of pieces in different colours.
The track in this chapter is a marble run. Rollii and friends worked out where the marble got stuck — your family can run the same test at home.
The thinking behind the story — written for grown-ups and curious kids.
“Why Does My Child Give Up So Fast?” – Turning Frustration into ConfidenceWhat to say when your child wants to quit — and why trying again matters more than getting it right.“Another Broken Toy?” – Why Quality is the Secret to Logical ThinkingHow a single loose joint changes the way a toy behaves — and what children learn from noticing it.They are the four friends at the Marble Lab, each with one strength — coming up with ideas, designing, adjusting, and watching closely. Every chapter is these four steps working together.
"I'm going to be the fastest today!"
"The next stop is going to be even more exciting!"
"Look at the board — a steeper slope makes the marble too fast to turn."
"I saw it clearly — this time it held the bend, steady."
We'll email you the whole chapter as a printable PDF — about 8 MB, ready to print or read on a tablet.
