Sea water goes through an aqueduct from the billowing shore to the fortress deep underground...
Three grasshopper men are strolling along the beach. They see a walled construction far to the south. They pass by a sperm whale skeleton bleached by sun and wave.
Then they are stopped by a trench, which is neither a brook nor a river, but seems shallow enough to wade across. Two of them cautiously look at the strange ripple, while the bravest of the three impatiently chafes his wings and walks into the water.
A strong force gets his legs! There's a hole, which was hidden by sea foam, now an opening mouth guzzling him down with thundering water!
He rolls and bumps! He struggles for air! He is storming down the passage in rock! He skids along gneiss wall! He skids along granite wall! He quickly passes by a gold nugget! He skids along native gold wall! He skids along gem wall! He skids along another kind of gem wall! He skids along another kind of gem wall!
Finally, he gets to the bottom, with legs and arms broken and bleeding. Although the furious water keeps running along, he is not pushed anywhere deeper. The moment he stretches and takes a breath near the ceiling, he is dragged back by powerful flow. Thus he emerges and submerges, for several days. He is running out of blood, but he keeps struggling!
What's the furry thing... it must be a black bear. You're right! It is a black bear, who thought he could swim across the trench. Now the bear is sitting on our unfortunate grasshopper man, emerging and submerging!
Prone in the water, the grasshopper man drowns.