A long, low hiss pervaded the whole of the air. Fear raced up each pony's spine. They turned slowly around.
It had stopped rising, two miles, four miles, five miles, ten miles or more into the sky. Some of its body- perhaps most of its body- still seemed to be submerged in the earth, but what protruded out and up was as broad as the whole of the Everfree Forest. It was jet black all over, even on its vast belly, up and up, craning back their necks to see, until their wandering eyes stopped at its huge head, bigger than Canterlot, shaped like a giant spade. Four blazing green eyes, each one bigger than an Ursa Major, flitted with unholy speed across the world, thick black lines for pupils. It opened its mouth. Fangs the size of Ponyville were a dull bone-white. A long, dull blue tongue, wider than a dragon's wingspan, longer than the road between Ponyville and the Everfree Forest, lolled out, flicked. Another hiss rose on the wind.
Applejack swallowed hard. Now she remembered what Pinkie Pie had said. "You... you reckon that's a world snake?"
"Yeah," Dash said, "I reckon."
It had stopped rising, two miles, four miles, five miles, ten miles or more into the sky. Some of its body- perhaps most of its body- still seemed to be submerged in the earth, but what protruded out and up was as broad as the whole of the Everfree Forest. It was jet black all over, even on its vast belly, up and up, craning back their necks to see, until their wandering eyes stopped at its huge head, bigger than Canterlot, shaped like a giant spade. Four blazing green eyes, each one bigger than an Ursa Major, flitted with unholy speed across the world, thick black lines for pupils. It opened its mouth. Fangs the size of Ponyville were a dull bone-white. A long, dull blue tongue, wider than a dragon's wingspan, longer than the road between Ponyville and the Everfree Forest, lolled out, flicked. Another hiss rose on the wind.
Applejack swallowed hard. Now she remembered what Pinkie Pie had said. "You... you reckon that's a world snake?"
"Yeah," Dash said, "I reckon."
—It's A Dangerous Business, Going Out Your Door, Chapter 18
