Then Grandmother said,

"Why don't we go to the woods to hear the band play?"

"No reason at all," said Grandfather. So very soon they were on their way to a grove on the edge of the town.

In the grove a band was playing; and just as the Twins and Grandfather and Grandmother came up, it began to play the national hymn of Holland. All the people began to sing. There were a great many people in the grove, and they all sang as aloud as they could; so there was a great sound. Grandfather and Grandmother and Kit and Kat all sang too; for they all knew every word of the hymn.

This is what they sang:

Let him in whom old Dutch blood flows,
Untainted, free and strong;
Whose heart for Prince and Country glows,
Now join us in our song;
Let him with us lift up his voice,
And sing in patriot band,
The song at which all hearts rejoice,
For Prince and Fatherland,
For Prince and Fatherland.

We brothers, true unto a man,
Will sing the old song yet;
Away with him who ever can
His Prince or Land forget!
A human heart glowed in him ne'er,
We turn from him our hand,
Who callous hears the song and prayer,
For Prince and Fatherland,
For Prince and Fatherland.

Preserve, O God, the dear old ground
Thou to our fathers gave;
The land where we a cradle found,
And where we'll find a grave!
We call, O Lord, to Thee on high,
As near death's door we stand,
Oh! Safety, blessing to our cry
For Prince and Fatherland,
For Prince and Fatherland.

Loud ring thro' all rejoicings here,
Our prayer, O Lord, to Thee;
Preserve our Prince, his house so dear
To Holland great and free!
From youth thro' life, be this our song,
Till near to death we stand:
O God, preserve our sov'reign long,
Our Prince and Fatherland,
Our Prince and Fatherland.

Now, while the people were singing with all their might, and the band was playing, and Kit and Kat were having the most beautiful time they had ever had in their whole lives, what do you think happened?