It was a warm summer afternoon in Delhi. Kids were playing in the parks. But by evening, something felt very wrong.
In neighborhood after neighborhood, kids started feeling sick — tummy aches, high fever, tired legs. Hospitals filled up fast. Doctors scratched their heads. Why were so many kids getting sick, all at once, all over the city?
Dogsy — who could talk to every animal on Earth — walked to the park tap, where his dog friend Sheru sat next to a small frog named Tinku.
"Dogsy," Tinku croaked, rubbing his tummy, "the water from the tap tastes horribly bitter today! Smells like chemicals. Even our lily pond has gone dark and yucky."
Dogsy touched the tap water. Yep — something nasty in there. "Napu!" he called. "The kids aren't sick from a bug — our water is poisoned!"
They rushed to the river that fed the city's water plants. This was Napu's moment to shine — because he wasn't just King of Snakes, he could talk to every creature that swims, too.
He waded into the shallow water and gave a soft, gurgling call. Up came golden carp, river turtles, and a few very grumpy-looking water snakes, all talking over each other.
"My King!" bubbled Meena, a wise old golden fish, pushing to the front. "Three miles past the old iron bridge — something terrible! Giant pipes are pouring thick black sludge into our river! It's making everyone sick, and honestly, it tastes disgusting."
"Rude of them," added a turtle. "Also, my shell has gone a weird colour."
To spot the exact place from above, Dogsy called some herons and kingfishers. They flew off, and returned minutes later: three factories, hidden behind tall walls.
Dogsy, Napu, and Bytes zoomed over on the super-scooter. Peeking over the wall, they saw three factory owners standing by illegal pipes, dumping chemical waste into the river at night — just to save money on proper cleanup.
"They're poisoning water that thousands of kids and animals drink — to save a few rupees!" Napu said, furious.
"Let's end this," Dogsy said.
Napu called his underwater friends into action. Hundreds of water snakes and turtles rolled river clay and boulders to seal the pipes shut — tight as a jam jar lid. Meanwhile Bytes snuck into the control room and hacked the electric pumps, shutting them down for good — tap tap tap, done.
Dogsy pulled out his glowing Bio-Purifier crystal and dipped it in the water. Blue light spread through the river, dissolving the sludge and bringing back fresh oxygen.
Police arrived, arrested all three factory owners, and the court made them pay a huge fine — enough to cover every sick child's hospital bill, build a proper water treatment plant, and plant ten thousand trees along the riverbank.
Within two days, clean, sweet water flowed from every tap again. Sick kids got better fast, laughing again in the parks.
That evening, Dogsy and Napu sat by the clean river, watching golden fish leap happily — including Meena, who did a little victory splash just for them.
Sweet dreams, little one. Sometimes the smallest fish in the murkiest water knows exactly what went wrong — you just have to be kind enough, and brave enough, to ask.