May 2026

Authors:
1. Maja Knez Vranic, OŠ Vladimir Nazor, Pisarovina, Croatia
2. BERNA EFEOGLU Ali Haydar Ersoy Ortaokulu, Kadıköy, Türkiye
3. Tatiana Iacob, Școala Gimnazială Hărău, România
4. Bilge Yılmazteki, Secondary School Şehit Doğan Sevinç, Türkiye
5. Jolanta Zamoyska, Primary School 369, Poland
6. Xanthippi Avramidou, 1st Primary School of Amyntaio, Greece
7. Dragana Videnov, Saint Sava Primary School, Kikinda, Serbia
8.
9.
10.
11.

‘The Green Heart of Earth is broken. You must find its pieces!’”





“Let’s go!”
They open the glowing book again, and suddenly—WHOOSH!—they are no longer in the library.





Part 1: The Forest of Whispering Trees - OŠ"Vladimir Nazor" Pisarovina
WHOOSH! They are in the Plitvice Lakes National Park.The forest is big and green. But it is very quiet.And the waterfalls are sad too.
Why is it quiet?

The forest is sick. There is trash. We need help!
We can help!Let's pick up trash and plant some new trees!


Slowly, the forest becomes alive again. The trees whisper, and leaves turn bright green.Now the forest is happy .The trees move and make soft sounds and the waterfalls dance happily.
They find a small green crystal.
Look!
The book appears again.
Good job! Go on!
Your journey continues…


It is a piece of the Green Heart!
Lily put the green crystal into her bag and continued walking deeper into the forest.
The weather was very hot. She walked toward the lake to wash her face.

Şehit Doğan Sevinç Secondary School-Bilge Yılmaztekin
It’s so hot… I need some water.













Another green crystal appeared above the lake :)
ALI HAYDAR ERSOY SECONDARY SCHOOL ISTANBUL TURKIYE BERNA EFEOGLU


Primary School of Perdikkas, Greece
That’s not normal magic… it feels dark. It can destoy the green crystals hidden in the books!
The ink slowly creeps toward the bookshelves…
We can't let it reach the books!
Then we'll stop it- together!
Primary School of Armenio

The green crystals are brighter!
The books are fighting back!



The ink is getting weaker!!!


The ink is moving back to the pens....




Oh! I can see the book shining!
...and the green crystal! Let's take it and help the others!
Primary School of Perdikkas, Greece
4th Primary School of Ptolemaida, Greece:




And just when we think that everything is ok, look at what is happening now! He is trying to make humans pollute the atmosphere!
There are so many cars and planes and factories!
We must stop him!


Ioanna B
Maria I
Maria It
Dimitra S












Pollute the environment
and drive cars!!!
Do not listen to him
ok




If we do not stop him it's over. People must not pollute the envinronment and stop using airplanes too!








You can't stop me!
We are going to put you in jail!

Oh NO!
Oh YES!

Max Angelos D Angelos M Nicolas ch


You will never escape, Shadow ink.
I will put a spell at you
No,you won't!
Vasilis, Mihail, Panagiotis, Arsenis



Now the world is safe!
People now won't pollute the atmosphere.They know.
You're right!
Primary School of Perdikkas,Greece
The Brown Bear who Lost her way



Meanwhile, a rare
animal, the brown bear, woke up but she has
lost its way due to a terrible storm. Now, she is wondering
around the mountains of
North Greece. Three heroes are here to help her...
Something is wrong in North Greece... I feel it...We must act and do something.
Hello! Can you help me find my home? The landscape has changed so much!



I can help them grow with my magic powers.
That is a great idea! If we make the forest as it was, it will be easier to find the way.
The forest was on fire, many trees were burnt...we must fix this. Why don't we plant some new trees.



The forest is nice and clean, but the river is dirty we need to take out the trash to make it clean again.
The heroes cleaned the water and took out the floating trash from the river so the bear can drink clean water and continue her journey.



The beach and the sea is dirty , there are lot's of rubbish. Nothing reminds the beach I saw the last time...
Don't worry... We can fix that together!
Let's collect the rubbish on the beach. I'll ask the sea animals to do the same in the sea.

Let's put some rubbish bins along the coast, too! So that it doesn't happen again!

Let's clean it and plant some trees. Then we can build a new house for you.
That's a good idea! Let's do it !!!!!
The mountain looks different...


As a magic the nature created itself a new path.
This path reminds me the path back home.



Look!Look! A new path!
Nature turns back to you the good that you offered to it!
The brown bear found her way back home. She was grateful for what she did with her new friends. They all learnt that nature is home for all of us and "if we care for nature, nature cares for us"!
Primary School of Perdikkas,Greece
The wind whispers through the young trees. The bear carefully followed the new path. The birds were singing. The sound of a small river could also be heard.
"Look, my home! The forest is my home."
Text: Școala Gimnazială Hărău, România
Aydın Bilsem, Türkiye
The wind is changing... the climate is changing... the ice in the poles starts to melt. Animals can't live under these conditions...
"The Frozen Mission" by the 1st Primary School of Amyntaio, Greece

A group of penguins have lost their way...we must find them...

The seals offer to help and take us to the Great Polar Bear, the king of the Arctic!
"You will find them in a cool cave, the only place that's still really cold!"

There you are...we can help you stay safe!
Thank you so much! We have a gift for you...we found this precious stone in the cave!

The polar bear examined the stone carefully and suddenly became serious.
This is no ordinary crystal, he said. It is the Crystal of Nature. It helps keep the Arctic clean and healthy. But its light is fading because too much pollution is reaching the oceans.
Jolanta Zamoyska 369th Primary School, Poland

The penguins looked at one another. They knew they had an important mission ahead of them




It's another piece of the Green Heart! We 're almost there!
Let's go back to the library...




Thanks to the hard work and strong faith in people and the power of nature, the Green Heart is whole again!
“Together, we can fix the Earth—just like the heroes in our story.”

- < BEGINNING
- END >
-
DOWNLOAD
-
LIKE
-
COMMENT()
-
SHARE
-
BUY THIS BOOK
(from $9.99+) -
BUY THIS BOOK
(from $9.99+) - DOWNLOAD
- LIKE
- COMMENT ()
- SHARE
- Report
-
BUY
-
LIKE
-
COMMENT()
-
SHARE
- Excessive Violence
- Harassment
- Offensive Pictures
- Spelling & Grammar Errors
- Unfinished
- Other Problem

COMMENTS
Click 'X' to report any negative comments. Thanks!