More than a hundred years ago a man and his two children were journeying from their home in Salzburg to Vienna. They traveled by the Danube boat, and Marianne, the sister, stood by the rail tossing pebbles into the water and watching the turbulent river swallow them up. Her dress was worn almost threadbare, but her face was so sweet and her eyes were so large and bright that she looked pretty for all her shabbiness.

Just behind her on the deck her father and brother were talking. “If we make some money in the city you’ll buy sister a new dress, won’t you, Father?” little Wolfgang asked.

Marianne whirled and started toward him. She knew that was sure to make her father sad, and she called, “Don’t coax, Wolfgang. My dress will do very well until we can afford to buy another, and a new one will seem all the nicer because of my having worn this one so long.”

Her brother turned his big, earnest eyes upon her, and answered, “But, Marianne, I know you want one. I heard you wish for it by the evening star, and last night you put it in your prayer.”

Father Mozart turned from them with a sad look on his face, and walked up and down the deck, wishing very much he could do what Wolfgang asked. But he was just a poor orchestra conductor with an income so small he had to stretch it hard to provide food and shelter for his family. Marianne must wear the shabby frock until better times began, which he hoped would be soon. They were to give some concerts in the Austrian capital, and maybe in that rich, music-loving city would earn enough to make them more comfortable than they had been before. But until then they must not spend a penny save what was needed for food and shelter, because the customs fee on the harp they carried must be paid, and that would reduce their little fund to a very small amount.

Wolfgang, too, thought about it as the boat crept in and out between the hills, and wondered much if there was no way in which Marianne might have the dress before they played in Vienna. His old teacher in Salzburg had often told him that there is a way out of every difficulty if one is clever enough to think of it, and there must be out of this. But although he tried and tried he could not find one. His own suit was bright and new, for his birthday was just past and it had been his uncle’s gift. But Marianne was a very shabby little girl, and he knew she was unhappy even though she was brave and sweet about it.

They were gliding past the ruins of the castle that once, men said, had been the prison of Richard the First, England’s Lion-Hearted King, when his enemies took him captive on his return from the holy wars. Wolfgang thought of the many brave things that soldier ruler had done during the Crusades, for often in the twilight time at Salzburg, as they waited for the father to come from his work, the mother told his tale, and of how the faithful servant Blondel found him at last by singing a song he knew the master loved.

“He was very brave and wise, too,” the boy thought as he looked at the crumbling pile. “He would have found a way for Marianne to have a new dress if she had been his sister.”

Was it the prayer being answered, or just the fulfillment of the wish made by the evening star? For while he thought, an idea came into his head. It was a good idea, it seemed to him, so good that it made him smile. If it worked out, and he believed it would, Marianne might have the dress she wanted so much, because then his father would have more money to spend.