In the days of old, the jelly-fish was one of the retainers in waiting upon the Queen of the World under the Sea, at her palace in Riu Gu. In those days he had a shell, and as his head was hard, no one dared to insult him, or stick him with their horns, or pinch him with their claws, or scratch him with their nails, or brush rudely by him with their fins. In short, this fish instead of being a lump of jelly, as white and helpless as a pudding, as we see him now, was a lordly fellow that could get his back up and keep it high when he wished to. He waited on the queen and right proud was he of his office. He was on good terms with the King's dragon, which often allowed him to play with his scaly tail but never hurt him in the least.
One day the Queen fell sick, and every hour grew worse. The King became anxious, and her subjects talked about nothing else but her sickness. There was grief all through the water-world; from the mermaids on their beds of sponge, and the dragons in the rocky caverns, down to the tiny gudgeons in the rivers, that were considered no more than mere bait. The jolly cuttle-fish stopped playing his drums and guitar, folded his six arms and hid away moping in his hole. His servant the lobster in vain lighted his candle at night, and tried to induce him to come out of his lair. The dolphins and porpoises wept tears, but the clams, oysters and limpets shut up their shells and did not even wiggle. The flounders and skates lay flat on the ocean's floor, never even lifting up their noses. The squid wept a great deal of ink, and the jelly-fish nearly melted to pure water. The tortoise was patient and offered to do anything for the relief of the Queen.
But nothing could be done. The cuttle-fish who professed to be "a kind of a" doctor, offered the use of all his cups to suck out the poison, if that were the trouble.
But it wasn't. It was internal, and nothing but medicine that could be swallowed would reach the disease.
At last some one suggested that the liver of a monkey would be a specific for the royal sickness, and it was resolved to try it. The tortoise, who was the Queen's messenger, because he could live on both land and water, swim or crawl, was summoned. He was told to go upon earth to a certain mountain, catch a monkey and bring him alive to the Under-world.
Off started the tortoise on his journey to the earth, and going to a mountain where the monkeys lived, squatted down at the foot of a tree and pretended to be asleep though keeping his claws and tail out. There he waited patiently, well knowing that curiosity and the monkey's love of tricks would bring one within reach of his talons. Pretty soon, a family of chattering monkeys came running along among the branches overhead, when suddenly a young saru (monkey) caught sight of the sleeping tortoise.
"Naru hodo" (Is it possible?) said the long-handed fellow, "here's fun; let's tickle the old fellow's back and pull his tail."
All agreed, and forthwith a dozen monkeys, joining hand over hand, made a long ladder of themselves until they just reached the tortoise's back. (They didn't use their tails, for Japanese monkeys have none, except stumps two inches long). However, he who was to be the tail end of this living rope, when all was ready, crawled along and slipped over the whole line, whispering as he slid:
"'Sh! don't chatter or laugh, you'll wake the old fellow up."
Now the monkey expected to hold on the living pendulum by one long hand, and swinging down with the other, to pull the tortoise's tail, and see how near he could come to his snout without being snapped up. For a monkey well knew that a tortoise could neither jump off its legs nor climb a tree.