昔、二人の兄弟がいました。兄は金持ちで弟は貧乏でした。ところが金持ちの兄は貧しい弟に何もあげませんでした。それで弟は穀物を売ってやっと暮らしをたてていましたが、ひどい時はおかみさんや子供に食べさせることもできませんでした。あるとき、手押し車を押して森を通っていると、片側に大きな木が生えていない禿げ山が見えました。弟は前にその山を見たことがなかったので、立ち止まって呆気にとられて眺めました。
こうして立っていると、12人の大きな荒くれ男たちがやってくるのが見え、弟はその男たちが強盗に違いないと思ったので、手押し車をやぶの中に押し込め自分は木に登って、何が起こるか見ようと待っていました。ところが12人の男たちはその山に行き、「ゼムジ山、ゼムジ山、開け」と叫びました。途端に木の無い山は真ん中がぱくっと開き、12人は中に入って行き、みんなが入ってしまうとすぐ山は閉じました。
しばらくすると山は再び開き、男たちは重い袋を肩にかけて出てきて、みんながまた明るいところにでてしまうと「ゼムジ山、ゼムジ山、閉じろ」と言いました。すると山は閉じて、もうその山に入口は見えなくなり、12人は立ち去りました。男たちがすっかり見えなくなると、貧しい男は木から下りて、山に何が密かに隠されているのか知りたくてたまらなくなりました。そこで、山に近づき、「ゼムジ山、ゼムジ山、開け」と言いました。すると山は弟の言葉にもまた開きました。それで弟は中に入りました。山全体が、銀や金でいっぱいのほら穴になっていて、奥に真珠やきらきらする宝石の大きな山がいくつも麦のようにつまれてありました。
貧しい男はどうしたらよいか、これらの財宝をとっていいのかどうかわかりませんでした。とうとう男はポケットに金貨をつめましたが、真珠や宝石はそのままにしておきました。また外に出ると男も「ゼムジ山、ゼムジ山、閉じろ」と言いました。すると山はひとりでに閉じ、男は手押し車を押して家に帰りました。そうしてもう弟は心配の種がなくなり、持っている金でおかみさんや子供たちにパンや、おまけにワインまで買ってやることができました。弟はほがらかに清く暮らし、貧しい人々を助けてやり、誰にも親切にしました。ところがお金がなくなると、弟は兄のところへ行き、一ブッシェル（35.238リットル）用の升を借り、またいくらか山からもってきましたが、とても値打ちのあるものには手を触れませんでした。
三度目にとってこようとしたとき、弟はまた兄から升を借りました。しかし兄は長い間、弟の財産や豊かな暮らしぶりを羨ましく思い、どこからその富がくるのか、弟が升を何につかうのかわかりませんでした。それでずる賢い計略を思いつき、升の底にタールを塗っておきました。それで弟が升を返したとき、一枚の金貨が升にくっついていました。兄はすぐに弟のところに行き、「ブッシェル升で何を測っていたのかね？」と尋ねました。「小麦や大麦だよ。」と弟は言いました。すると兄はくっついていた金貨を見せ、本当のことを言わないと裁判所に訴えてやるぞ、と脅しました。それで可哀そうに、弟はあった出来事をすっかり兄に話しました。
そこで金持ちは馬車を用意させると、でかけていき、弟がやったよりうまくその機会を利用し、すっかり違う財宝を持って帰ろうと決めていました。山に着くと、兄は「ゼムジ山、ゼムジ山、開け」と言いました。すると山は開き、兄は中に入りました。すると目の前にものすごい宝があり、長い間どれをとったらよいかわかりませんでした。
とうとう持てるだけたくさん宝石をとりました。そうして荷物を外に運び出そうとしましたが、すっかり財宝に気をとられたせいで、山の名前を忘れてしまい、「ジメリ山、ジメリ山、開け」と叫びました。
しかし、それは本当の名前ではなかったので山はちっとも動かず閉まったままでした。それで兄は焦り、山の名前を考えれば考えるほど、ああでもないこうでもないと混乱してきました。それで財宝は何の役にも立ちませんでした。夕方になると山が開き、12人の強盗たちが入ってきました。兄を見ると強盗たちは笑って、「よう、小鳥ちゃん、とうとうお前をつかまえたぜ。お前がここに2回入っていたのをおれたちが知らなかったとでも思っているのか？そのときはお前をつかまえられなかった。この三回目はお前を二度と外に出すもんか。」と叫びました。そこで兄は叫びました。「それはおれじゃなくて弟だ。」しかし、兄がどんなに命乞いしようが何を言おうが無駄で、強盗たちは頭を切り落としてしまいました。
There were once two brothers, the one rich, the other poor. The rich one, however, gave nothing to the poor one, and he gained a scanty living by trading in corn, and often did so badly that he had no bread for his wife and children. Once when he was wheeling a barrow through the forest he saw, on one side of him, a great, bare, naked-looking mountain, and as he had never seen it before, he stood still and stared at it with amazement.
While he was thus standing he saw a twelve great, wild men coming towards him, and as he believed they were robbers he pushed his barrow into the thicket, climbed up a tree, and waited to see what would happen. The twelve men, however, went to the mountain and cried, "Semsi mountain, Semsi mountain, open," and immediately the barren mountain opened down the middle, and the twelve went into it, and as soon as they were within, it shut. After a short time, however, it opened again, and the men came forth carrying heavy sacks on their shoulders, and when they were all once more in the daylight they said, "Semsi mountain, Semsi mountain, shut thyself;" then the mountain closed together, and there was no longer any entrance to be seen to it, and the twelve went away.
While he was thus standing he saw a twelve great, wild men coming towards him, and as he believed they were robbers he pushed his barrow into the thicket, climbed up a tree, and waited to see what would happen. The twelve men, however, went to the mountain and cried, "Semsi mountain, Semsi mountain, open," and immediately the barren mountain opened down the middle, and the twelve went into it, and as soon as they were within, it shut. After a short time, however, it opened again, and the men came forth carrying heavy sacks on their shoulders, and when they were all once more in the daylight they said, "Semsi mountain, Semsi mountain, shut thyself;" then the mountain closed together, and there was no longer any entrance to be seen to it, and the twelve went away.
When they were quite out of sight the poor man got down from the tree, and was curious to know what really was secretly hidden in the mountain. So he went up to it and said, "Semsi mountain, Semsi mountain, open," and the mountain opened to him also. The he went inside, and the whole mountain was a cavern full of silver and gold, and behind lay great piles of pearls and sparkling jewels, heaped up like corn. The poor man hardly knew what to do, and whether he might take any of these treasures for himself or not; but at last he filled his pockets with gold, but he left the pearls and precious stones where they were. When he came out again he also said, "Semsi mountain, Semsi mountain, shut thyself;" and the mountain closed itself, and he went home with his barrow.
And now he had no more cause for anxiety, but could buy bread for his wife and children with his gold, and wine into the bargain. He lived joyously and uprightly, gave help to the poor, and did good to every one. When, however, the money came to an end he went to his brother, borrowed a measure that held a bushel, and brought himself some more, but did not touch any of the most valuable things. When for the third time he wanted to fetch something, he again borrowed the measure of his brother. The rich man had, however, long been envious of his brother's possessions, and of the handsome way of living which he had set on foot, and could not understand from whence the riches came, and what his brother wanted with the measure. Then he thought of a cunning trick, and covered the bottom of the measure with pitch, and when he got the measure back a piece of money was sticking in it. He at once went to his brother and asked him, "What hast thou been measuring in the bushel measure?" - "Corn and barley," said the other. Then he showed him the piece of money, and threatened that if he did not tell the truth he would accuse him before a court of justice. The poor man then told him everything, just as it happened. The rich man, however, ordered his carriage to be made ready, and drove away, resolved to use the opportunity better than his brother had done, and to bring back with him quite different treasures.
When he came to the mountain he cried, "Semsi mountain, Semsi mountain, open." The mountain opened, and he went inside it. There lay the treasures all before him, and for a long time he did not know which to clutch at first. At length he loaded himself with as many precious stones as he could carry. He wished to carry his burden outside, but, as his heart and soul were entirely full of the treasures, he had forgotten the name of the mountain, and cried, "Simeli mountain, Simeli mountain, open." That, however, was not the right name, and the mountain never stirred, but remained shut. Then he was alarmed, but the longer he thought about it the more his thoughts confused themselves, and his treasures were no more of any use to him. In the evening the mountain opened, and the twelve robbers came in, and when they saw him they laughed, and cried out, "Bird, have we caught thee at last! Didst thou think we had never noticed that thou hadst been in here twice? We could not catch thee then; this third time thou shalt not get out again!" Then he cried, "It was not I, it was my brother," but let him beg for his life and say what he would, they cut his head off.