The ship in the Black Sea was moving slowly, while black clouds gathered above it.
The girl, Kasha, and the pilot, Shnemo, climbed to the top deck to sit in the chairs and watch the waves of the sea.
Kasha took a bottle of water, drank a little, then closed her eyes.
Suddenly, lightning lit up the sky, and thunder roared. The pilot panicked and said:
"It's a storm coming! Let's go down, girl."
But Kasha replied calmly:
"It's only a passing seasonal storm, don't worry. I want to enjoy the rain… I'm waiting to hear my sister's voice."
The pilot stayed beside her, unwilling to leave, his eyes fixed on her.
Kasha raised the bottle and peered inside. Suddenly, a strong whistle echoed from within it. She felt as if her sister was swirling inside a hurricane. Voices began to intertwine — sometimes faint, sometimes sharp — the voice of a man, then the voice of a girl.
She cried out:
"Raise your voice, my sister! I can't hear you well!"
An idea struck her. To make her sister's voice louder, she poured some of the water into the Black Sea until the bottle became nearly empty.
The pilot noticed and said:
"You didn't empty it completely! I wanted to drink it."
Kasha smiled and replied:
"Wait a little. It's a pleasant surprise. My sister's voice is inside this bottle. That water was blocking her voice… now I feel she's sending me a message."
She lifted the bottle again and listened closely. This time, the sound was clear.
Kasha burst into tears as she heard her sister's message. Her tears streamed down her hands as she whispered:
"Thank you, my sister… your voice froze the waters of the bombs, and froze the hands of the pilots. I am waiting with you for the rain to come."
Soon, rain began to fall, and the bottle filled with raindrops, mingling with the tears of the pilots and her sister.
Overwhelmed with joy, Kasha stood up, screaming through her tears, and looked out over the Black Sea:
"O mermaid, O fish, you will live in peace.
O sea, you have endured so much that your clothes turned black.
But soon, you will wear a new blue dress, shining with the rays of the rising sun.
Ships will roam over you, singing.
Raise your voices for peace — for life goes on!"